{"id":19273,"date":"2025-07-07T03:40:05","date_gmt":"2025-07-06T20:40:05","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=19273"},"modified":"2025-07-07T08:05:13","modified_gmt":"2025-07-07T01:05:13","slug":"thau-kinh-hoi-tu-la-gi-dac-diem-cach-ve-va-cong-thuc-tinh-chi-tiet-vat-ly-9","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/thau-kinh-hoi-tu-la-gi-dac-diem-cach-ve-va-cong-thuc-tinh-chi-tiet-vat-ly-9\/","title":{"rendered":"Th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 l\u00e0 g\u00ec? \u0110\u1eb7c \u0111i\u1ec3m, c\u00e1ch v\u1ebd v\u00e0 c\u00f4ng th\u1ee9c t\u00ednh chi ti\u1ebft (V\u1eadt l\u00fd 9)"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.ckconitsha.com\/vn\/thau-kinh-hoi-tu-la-gi-dac-diem-cach-ve-va-cong-thuc-tinh-chi-tiet-vat-ly-9\/#Thau_kinh_hoi_tu_la_gi\" >Th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 l\u00e0 g\u00ec?\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.ckconitsha.com\/vn\/thau-kinh-hoi-tu-la-gi-dac-diem-cach-ve-va-cong-thuc-tinh-chi-tiet-vat-ly-9\/#Dac_diem_cua_thau_kinh_hoi_tu\" >\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5\u00a0<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ckconitsha.com\/vn\/thau-kinh-hoi-tu-la-gi-dac-diem-cach-ve-va-cong-thuc-tinh-chi-tiet-vat-ly-9\/#Tia_sang_qua_thau_kinh\" >Tia s\u00e1ng qua th\u1ea5u k\u00ednh\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ckconitsha.com\/vn\/thau-kinh-hoi-tu-la-gi-dac-diem-cach-ve-va-cong-thuc-tinh-chi-tiet-vat-ly-9\/#Hinh_dang_cua_thau_kinh_hoi_tu\" >H\u00ecnh d\u1ea1ng c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.ckconitsha.com\/vn\/thau-kinh-hoi-tu-la-gi-dac-diem-cach-ve-va-cong-thuc-tinh-chi-tiet-vat-ly-9\/#Chat_lieu_dung_de_lam_thau_kinh_hoi_tu\" >Ch\u1ea5t li\u1ec7u d\u00f9ng \u0111\u1ec3 l\u00e0m th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.ckconitsha.com\/vn\/thau-kinh-hoi-tu-la-gi-dac-diem-cach-ve-va-cong-thuc-tinh-chi-tiet-vat-ly-9\/#Cach_nhan_biet_thau_kinh_hoi_tu\" >C\u00e1ch nh\u1eadn bi\u1ebft th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.ckconitsha.com\/vn\/thau-kinh-hoi-tu-la-gi-dac-diem-cach-ve-va-cong-thuc-tinh-chi-tiet-vat-ly-9\/#Truc_chinh_quang_tam_tieu_diem_tieu_cu_cua_thau_kinh_hoi_tu\" >Tr\u1ee5c ch\u00ednh, quang t\u00e2m, ti\u00eau \u0111i\u1ec3m, ti\u00eau c\u1ef1 c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.ckconitsha.com\/vn\/thau-kinh-hoi-tu-la-gi-dac-diem-cach-ve-va-cong-thuc-tinh-chi-tiet-vat-ly-9\/#Truc_chinh_cua_thau_kinh_hoi_tu\" >Tr\u1ee5c ch\u00ednh c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.ckconitsha.com\/vn\/thau-kinh-hoi-tu-la-gi-dac-diem-cach-ve-va-cong-thuc-tinh-chi-tiet-vat-ly-9\/#Quang_tam_cua_thau_kinh_hoi_tu\" >Quang t\u00e2m c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.ckconitsha.com\/vn\/thau-kinh-hoi-tu-la-gi-dac-diem-cach-ve-va-cong-thuc-tinh-chi-tiet-vat-ly-9\/#Tieu_diem_cua_thau_kinh_hoi_tu\" >Ti\u00eau \u0111i\u1ec3m c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.ckconitsha.com\/vn\/thau-kinh-hoi-tu-la-gi-dac-diem-cach-ve-va-cong-thuc-tinh-chi-tiet-vat-ly-9\/#Tieu_cu_cua_thau_kinh_hoi_tu\" >Ti\u00eau c\u1ef1 c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5\u00a0<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.ckconitsha.com\/vn\/thau-kinh-hoi-tu-la-gi-dac-diem-cach-ve-va-cong-thuc-tinh-chi-tiet-vat-ly-9\/#Cach_ve_thau_kinh_hoi_tu\" >C\u00e1ch v\u1ebd th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.ckconitsha.com\/vn\/thau-kinh-hoi-tu-la-gi-dac-diem-cach-ve-va-cong-thuc-tinh-chi-tiet-vat-ly-9\/#Anh_cua_vat_qua_thau_kinh_hoi_tu\" >\u1ea2nh c\u1ee7a v\u1eadt qua th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.ckconitsha.com\/vn\/thau-kinh-hoi-tu-la-gi-dac-diem-cach-ve-va-cong-thuc-tinh-chi-tiet-vat-ly-9\/#Cong_thuc_thau_kinh_hoi_tu\" >C\u00f4ng th\u1ee9c th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.ckconitsha.com\/vn\/thau-kinh-hoi-tu-la-gi-dac-diem-cach-ve-va-cong-thuc-tinh-chi-tiet-vat-ly-9\/#Ung_dung_cua_thau_kinh_hoi_tu_trong_doi_song\" >\u1ee8ng d\u1ee5ng c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 trong \u0111\u1eddi s\u1ed1ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.ckconitsha.com\/vn\/thau-kinh-hoi-tu-la-gi-dac-diem-cach-ve-va-cong-thuc-tinh-chi-tiet-vat-ly-9\/#Mot_so_bai_tap_thau_kinh_hoi_tu_lop_9\" >M\u1ed9t s\u1ed1 b\u00e0i t\u1eadp th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 l\u1edbp 9<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p dir=\"ltr\">Th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 l\u00e0 m\u1ed9t ph\u1ea7n ki\u1ebfn th\u1ee9c v\u1ec1 th\u1ea5u k\u00ednh m\u00e0 c\u00e1c em s\u1ebd \u0111\u01b0\u1ee3c h\u1ecdc trong ch\u01b0\u01a1ng tr\u00ecnh V\u1eadt l\u00ed 9. V\u1eady \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 ki\u1ebfn th\u1ee9c n\u00e0y t\u1eeb kh\u00e1i ni\u1ec7m, \u0111\u1eb7c \u0111i\u1ec3m, c\u00e1ch v\u1ebd, c\u00f4ng th\u1ee9c t\u00ednh,&#8230; H\u00e3y c\u00f9ng Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef kh\u00e1m ph\u00e1 r\u00f5 h\u01a1n trong b\u00e0i vi\u1ebft sau \u0111\u00e2y.<\/p>\n<p>                                                                    <img decoding=\"async\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img_default\/monkey3.png\" alt=\"\"><\/p>\n<p class=\"title\">H\u00e0ng tri\u1ec7u tr\u1ebb em \u0111\u00e3 ph\u00e1t tri\u1ec3n kh\u1ea3 n\u0103ng ng\u00f4n ng\u1eef c\u1ee7a m\u00ecnh th\u00f4ng qua c\u00e1c \u1ee9ng d\u1ee5ng h\u1ecdc t\u1eadp c\u1ee7a Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef<\/p>\n<p class=\"description\">\u0110\u0103ng k\u00fd ngay \u0111\u1ec3 \u0111\u01b0\u1ee3c Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed v\u1ec1 s\u1ea3n ph\u1ea9m v\u00e0 l\u1ed9 tr\u00ecnh h\u1ecdc cho con.<\/p>\n<p>                                                                            *Vui l\u00f2ng ki\u1ec3m tra l\u1ea1i h\u1ecd t\u00ean<\/p>\n<p>                                                                            *Vui l\u00f2ng ki\u1ec3m tra l\u1ea1i S\u0110T<\/p>\n<p>                                                                                Th\u00e0nh th\u1ea1o 2.000+ t\u1eeb &amp; 6.000 c\u00e2u ti\u1ebfng anh<br \/>\n                                                                                Ph\u00e1t tri\u1ec3n to\u00e0n di\u1ec7n 4 k\u1ef9 n\u0103ng ti\u1ebfng anh<br \/>\n                                                                                Gi\u1ecfi To\u00e1n &#8211; ti\u1ebfng Anh theo ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7n \u0111\u1ea1i<br \/>\n                                                                                Ph\u00e1t tri\u1ec3n EQ &amp; kh\u1ea3 n\u0103ng ti\u1ebfng Vi\u1ec7t<\/p>\n<p>                                                                                *B\u1ea1n ch\u01b0a ch\u1ecdn m\u1ee5c n\u00e0o!<\/p>\n<p>                                                                    \u0110\u0103ng K\u00fd T\u01b0 V\u1ea5n Mi\u1ec5n Ph\u00ed<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Thau_kinh_hoi_tu_la_gi\"><\/span>Th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 l\u00e0 g\u00ec?\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Trong c\u00e1c \u0111\u1ecbnh ngh\u0129a v\u1ec1 quang h\u1ecdc, th\u1ea5u k\u00ednh l\u00e0 m\u1ed9t d\u1ee5ng c\u1ee5 quang h\u1ecdc d\u00f9ng \u0111\u1ec3 h\u1ed9i t\u1ee5 hay ph\u00e2n k\u1ef3 nh\u1eefng ch\u00f9m \u00e1nh s\u00e1ng kh\u00e1c nhau.\u00a0 C\u00f2n trong ng\u1eef c\u1ea3nh r\u1ed9ng, th\u1ea5u k\u00ednh quang h\u1ecdc l\u00e0 c\u00e1c th\u1ea5u k\u00ednh l\u00e0m vi\u1ec7c v\u1edbi \u00e1nh s\u00e1ng v\u00e0 b\u1eb1ng k\u1ef9 thu\u1eadt truy\u1ec1n th\u1ed1ng.<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/thau-kinh-hoi-tu-la-gi.jpg\" alt=\"Th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 l\u00e0 g\u00ec? \" width=\"800\" height=\"450\"><\/p>\n<p dir=\"ltr\">V\u1eady th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 cho \u1ea3nh g\u00ec? Kh\u00e1c v\u1edbi th\u1ea5u k\u00ednh ph\u00e2n k\u1ef3, th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 l\u00e0 th\u1ea5u k\u00ednh c\u00f3 m\u00e0u trong su\u1ed1t, v\u1edbi ph\u1ea7n r\u00eca m\u1ecfng h\u01a1n ph\u1ea7n gi\u1eefa. Ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c gi\u1edbi h\u1ea1n b\u1edfi hai m\u1eb7t c\u1ea7u ho\u1eb7c m\u1ed9t m\u1eb7t ph\u1eb3ng v\u00e0 m\u1ed9t m\u1eb7t c\u1ea7u.<\/p>\n<p dir=\"ltr\">\u0110\u00e2y l\u00e0 th\u1ea5u k\u00ednh m\u00e0 ch\u00f9m tia s\u00e1ng sau khi \u0111i qua k\u00ednh s\u1ebd h\u1ed9i t\u1ee5 t\u1ea1i m\u1ed9t \u0111i\u1ec3m.<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Dac_diem_cua_thau_kinh_hoi_tu\"><\/span>\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 bao g\u1ed3m:\u00a0<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tia_sang_qua_thau_kinh\"><\/span>Tia s\u00e1ng qua th\u1ea5u k\u00ednh\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Tia s\u00e1ng \u0111i t\u1edbi th\u1ea5u k\u00ednh g\u1ecdi l\u00e0 tia t\u1edbi, c\u00f2n tia l\u00f3 l\u00e0 tia kh\u00fac x\u1ea1 kh\u1ecfi th\u1ea5u k\u00ednh.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Tia t\u1edbi \u0111\u1ebfn quang t\u00e2m th\u00ec tia l\u00f3 ti\u1ebfp t\u1ee5c truy\u1ec1n th\u1eb3ng theo ph\u01b0\u01a1ng c\u1ee7a tia t\u1edbi.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Tia t\u1edbi song song v\u1edbi tr\u1ee5c ch\u00ednh th\u00ec tia l\u00f3 qua ti\u00eau \u0111i\u1ec3m.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Tia t\u1edbi \u0111i qua ti\u00eau \u0111i\u1ec3m th\u00ec tia l\u00f3 song song v\u1edbi tr\u1ee5c ch\u00ednh.<\/p>\n<\/li>\n<\/ul>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Hinh_dang_cua_thau_kinh_hoi_tu\"><\/span>H\u00ecnh d\u1ea1ng c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 \u0111\u01b0\u1ee3c gi\u1edbi h\u1ea1n b\u1edfi hai m\u1eb7t c\u1ea7u (m\u1ed9t trong hai m\u1eb7t c\u00f3 th\u1ec3 l\u00e0 m\u1eb7t ph\u1eb3ng). Ph\u1ea7n r\u00eca ph\u00eda b\u00ean ngo\u00e0i s\u1ebd m\u1ecfng h\u01a1n \u1edf gi\u1eefa.<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/thau-kinh-hoi-tu-1.jpg\" alt=\"H\u00ecnh \u1ea3nh minh ho\u1ea1 th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5. (\u1ea2nh: S\u01b0u t\u1ea7m Internet)\" width=\"500\" height=\"356\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Chat_lieu_dung_de_lam_thau_kinh_hoi_tu\"><\/span>Ch\u1ea5t li\u1ec7u d\u00f9ng \u0111\u1ec3 l\u00e0m th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">C\u00f3 r\u1ea5t nhi\u1ec1u ch\u1ea5t li\u1ec7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m n\u00ean chi\u1ebfc th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5. Th\u00f4ng th\u01b0\u1eddng n\u00f3 \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb nh\u1eefng v\u1eadt li\u1ec7u trong su\u1ed1t, \u0111i\u1ec3n h\u00ecnh l\u00e0 nh\u1ef1a ho\u1eb7c l\u00e0 th\u1ee7y tinh.<\/p>\n<p dir=\"ltr\">1. Th\u1ea5u k\u00ednh b\u1eb1ng nh\u1ef1a<\/p>\n<p dir=\"ltr\">\u0110\u00e2y l\u00e0 v\u1eadt li\u1ec7u t\u1ed1t nh\u1ea5t \u0111\u1ec3 t\u1ea1o n\u00ean m\u1ed9t chi\u1ebfc th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 b\u1edfi d\u1ec5 s\u1eed d\u1ee5ng cho m\u1ecdi \u0111\u1ed1i t\u01b0\u1ee3ng. Nh\u1eefng lo\u1ea1i th\u1ea5u k\u00ednh \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng nh\u1ef1a, ch\u1ea5t d\u1ebbo c\u00f3 t\u00ean g\u1ecdi kh\u00e1c l\u00e0 th\u1ee7y tinh h\u1eefu c\u01a1. \u0110\u1ed1i v\u1edbi lo\u1ea1i n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong vi\u1ec7c l\u00e0m k\u00ednh cho tr\u1ebb nh\u1ecf ho\u1eb7c khi ch\u01a1i th\u1ec3 thao b\u1edfi s\u1ef1 tho\u1ea3i m\u00e1i c\u0169ng nh\u01b0 nh\u1eb9 nh\u00e0ng c\u0169ng nh\u01b0 ch\u1ed1ng v\u1ee1 c\u1ef1c cao.<\/p>\n<p dir=\"ltr\">2. Th\u1ea5u k\u00ednh b\u1eb1ng th\u1ee7y tinh<\/p>\n<p dir=\"ltr\">Nh\u1eefng lo\u1ea1i th\u1ea5u k\u00ednh \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng th\u1ee7y tinh kho\u00e1ng t\u1ef1 nhi\u00ean c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t, \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i v\u00f4 c\u00f9ng chuy\u00ean nghi\u1ec7p v\u00e0 l\u00e0 ti\u00eau chu\u1ea9n cho c\u00e1c s\u1ea3n ph\u1ea9m n\u00e0y. V\u1edbi lo\u1ea1i th\u1ea5u k\u00ednh n\u00e0y, ng\u01b0\u1eddi ti\u00eau d\u00f9ng s\u1ebd \u00edt t\u1ed1n k\u00e9m h\u01a1n so v\u1edbi nh\u1eefng lo\u1ea1i k\u00ednh s\u1eed d\u1ee5ng b\u1eb1ng nh\u1ef1a, \u0111\u1eb7c bi\u1ec7t ch\u00fang c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng x\u01b0\u1edbc c\u1ef1c cao v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng tr\u01b0\u1eddng h\u1ee3p b\u1ecb lo\u1ea1n d\u01b0\u1ee1ng n\u1eb7ng.\u00a0<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cach_nhan_biet_thau_kinh_hoi_tu\"><\/span>C\u00e1ch nh\u1eadn bi\u1ebft th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 c\u00f3 th\u1ec3 nh\u1eadn bi\u1ebft th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5, c\u00e1c em c\u00f3 th\u1ec3 tham kh\u1ea3o 3 c\u00e1ch d\u01b0\u1edbi \u0111\u00e2y.\u00a0<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">D\u00f9ng tay \u0111\u1ec3 nh\u1eadn bi\u1ebft \u0111\u01b0\u1ee3c ch\u00fang qua \u0111\u1ed9 d\u00e0y c\u1ee7a ph\u1ea7n trung t\u00e2m v\u00e0 \u0111\u1ed9 d\u00e0y ph\u1ea7n r\u00eca. N\u1ebfu ph\u1ea7n r\u00eca c\u1ee7a th\u1ea5u k\u00ednh \u0111\u00f3 m\u1ecfng h\u01a1n so v\u1edbi ph\u1ea7n trung t\u00e2m, th\u00ec \u0111\u00f3 l\u00e0 th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u0110\u01b0a th\u1ea5u k\u00ednh g\u1ea7n v\u00e0o d\u00f2ng ch\u1eef tr\u00ean s\u00e1ch. N\u1ebfu th\u1ea5u k\u00ednh c\u00f3 th\u1ec3 l\u00e0m cho d\u00f2ng ch\u1eef nh\u00ecn qua th\u1ea5u k\u00ednh l\u1edbn h\u01a1n so v\u1edbi nh\u00ecn tr\u1ef1c ti\u1ebfp tr\u00ean s\u00e1ch th\u00ec \u0111\u00f3 ch\u00ednh l\u00e0 th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">D\u00f9ng th\u1ea5u k\u00ednh h\u1ee9ng \u00e1nh s\u00e1ng. D\u00f9ng th\u1ea5u k\u00ednh h\u1ee9ng \u00e1nh s\u00e1ng ng\u1ecdn \u0111\u00e8n \u0111\u1eb7t \u1edf xa l\u00ean m\u00e0n h\u1ee9ng. N\u1ebfu ch\u00f9m s\u00e1ng \u0111\u00f3 h\u1ed9i t\u1ee5 tr\u00ean m\u00e0n th\u00ec \u0111\u00f3 ch\u00ednh l\u00e0 th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5.<\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Truc_chinh_quang_tam_tieu_diem_tieu_cu_cua_thau_kinh_hoi_tu\"><\/span>Tr\u1ee5c ch\u00ednh, quang t\u00e2m, ti\u00eau \u0111i\u1ec3m, ti\u00eau c\u1ef1 c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng kh\u00e1i ni\u1ec7m xung quanh th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 c\u1ea7n ghi nh\u1edb\u00a0<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Truc_chinh_cua_thau_kinh_hoi_tu\"><\/span>Tr\u1ee5c ch\u00ednh c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Tr\u1ee5c ch\u00ednh c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 ch\u00ednh l\u00e0 tia l\u00f3, c\u00f3 th\u1ec3 truy\u1ec1n th\u1eb3ng qua v\u1eadt v\u00e0 kh\u00f4ng b\u1ecb \u0111\u1ed5i h\u01b0\u1edbng khi \u0111i qua th\u1ea5u k\u00ednh.\u00a0<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/thau-kinh-hoi-tu-2.jpg\" alt=\"V\u1ebd tr\u1ee5c ch\u00ednh c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5. (\u1ea2nh: T\u00e1c gi\u1ea3)\" width=\"800\" height=\"494\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Quang_tam_cua_thau_kinh_hoi_tu\"><\/span>Quang t\u00e2m c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ed1i v\u1edbi th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 th\u00ec quang t\u00e2m ch\u00ednh l\u00e0 \u0111i\u1ec3m m\u00e0 m\u1ecdi tia s\u00e1ng \u0111i t\u1edbi \u0111i\u1ec3m n\u00e0y \u0111\u1ec1u c\u00f3 th\u1ec3 truy\u1ec1n th\u1eb3ng v\u00e0 kh\u00f4ng b\u1ecb \u0111\u1ed5i h\u01b0\u1edbng. Quang t\u00e2m \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u l\u00e0 O.<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/thau-kinh-hoi-tu-3.jpg\" alt=\"M\u00f4 ph\u1ecfng quang t\u00e2m c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5. (\u1ea2nh: T\u00e1c gi\u1ea3)\" width=\"800\" height=\"494\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tieu_diem_cua_thau_kinh_hoi_tu\"><\/span>Ti\u00eau \u0111i\u1ec3m c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ed1i v\u1edbi ti\u00eau \u0111i\u1ec3m c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 \u0111\u01b0\u1ee3c k\u00ed hi\u1ec7u l\u00e0 F. Ch\u00fang c\u00f3 ch\u00f9m tia l\u00f3 h\u1ed9i t\u1ee5 t\u1ea1i m\u1ed9t \u0111i\u1ec3m v\u00e0 c\u00f3 ch\u00f9m tia t\u1edbi song song v\u1edbi tr\u1ee5c ch\u00ednh c\u1ee7a th\u1ea5u k\u00ednh.\u00a0<\/p>\n<p dir=\"ltr\">H\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng truy\u1ec1n c\u1ee7a ba tia s\u00e1ng \u0111\u1eb7c bi\u1ec7t nh\u01b0 sau:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Tia t\u1edbi khi \u0111i qua quang t\u00e2m O s\u1ebd cho tia l\u00f3 truy\u1ec1n th\u1eb3ng.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Tia t\u1edbi s\u1ebd song song v\u1edbi tr\u1ee5c ch\u00ednh, sau \u0111\u00f3 cho tia l\u00f3 \u0111i qua ti\u00eau \u0111i\u1ec3m F\u2019<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Tia t\u1edbi khi qua ti\u00eau \u0111i\u1ec3m F c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m song song v\u1edbi tr\u1ee5c ch\u00ednh.<\/p>\n<\/li>\n<\/ul>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tieu_cu_cua_thau_kinh_hoi_tu\"><\/span>Ti\u00eau c\u1ef1 c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">V\u1edbi ti\u00eau c\u1ef1 th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5, \u0111\u00e2y l\u00e0 kho\u1ea3ng c\u00e1ch t\u1eeb ti\u00eau \u0111i\u1ec3m F c\u1ee7a th\u1ea5u k\u00ednh, \u0111i t\u1edbi quang t\u00e2m O c\u1ee7a th\u1ea5u k\u00ednh, \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u l\u00e0 f v\u00e0 c\u00f3 \u0111\u01a1n v\u1ecb \u0111o l\u00e0 cm.<\/p>\n<table style=\"border-collapse: collapse;width: 100%;background-color: #fbeeb8\" border=\"1\">\n<tr>\n<td style=\"width: 100%\">\n<p style=\"text-align: center\">GI\u00daP CON H\u1eccC TO\u00c1N K\u1ebeT H\u1ee2P V\u1edaI TI\u1ebeNG ANH SI\u00caU TI\u1ebeT KI\u1ec6M CH\u1ec8 TR\u00caN M\u1ed8T APP MONKEY MATH. V\u1edaI N\u1ed8I DUNG D\u1ea0Y H\u1eccC \u0110A PH\u01af\u01a0NG PH\u00c1P GI\u00daP B\u00c9 PH\u00c1T TRI\u1ec2N T\u01af DUY N\u00c3O B\u1ed8 V\u00c0 NG\u00d4N NG\u1eee TO\u00c0N DI\u1ec6N CH\u1ec8 V\u1edaI 2K\/NG\u00c0Y.<\/p>\n<p style=\"text-align: center\">\u00a0<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia.monkeyuni.net\/upload\/web\/img\/button_dang-ky-ngay-1.png\" alt=\"\" width=\"185\" height=\"25\"><\/p>\n<\/td>\n<\/tr>\n<\/table>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cach_ve_thau_kinh_hoi_tu\"><\/span>C\u00e1ch v\u1ebd th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 c\u00f3 th\u1ec3 v\u1ebd \u0111\u01b0\u1ee3c th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5, h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u c\u00e1c b\u01b0\u1edbc v\u1ebd d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">V\u1ebd tr\u1ee5c ch\u00ednh n\u1eb1m ngang k\u00fd hi\u1ec7u l\u00e0 (\u25b3).<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">D\u1ef1ng th\u1ea5u k\u00ednh vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c ch\u00ednh. \u0110i\u1ec3m \u0111i qua quang t\u00e2m k\u00fd hi\u1ec7u l\u00e0 (O)<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">C\u00f3 ch\u00f9m tia t\u1edbi song song v\u1edbi tr\u1ee5c ch\u00ednh c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5. Ti\u00eau \u0111i\u1ec3m ch\u00ednh l\u00e0 ch\u00f9m tia l\u00f3 h\u1ed9i t\u1ee5 t\u1ea1i 1 \u0111i\u1ec3m tr\u00ean tr\u1ee5c ch\u00ednh.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ti\u00eau \u0111i\u1ec3m ch\u00ednh l\u00e0 hai \u0111i\u1ec3m n\u1eb1m tr\u00ean tr\u1ee5c ch\u00ednh c\u00e1ch th\u1ea5u k\u00ednh m\u1ed9t kho\u1ea3ng v\u00e0 \u0111\u1ed1i x\u1ee9ng v\u1edbi ti\u00eau \u0111i\u1ec3m F b\u00ean n\u00e0y ta c\u00f3 ti\u00eau \u0111i\u1ec3m F\u2019 b\u00ean kia c\u1ee7a th\u1ea5u k\u00ednh.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">C\u00e1c em c\u00f3 th\u1ec3 tham kh\u1ea3o h\u00ecnh v\u1ebd d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/thau-kinh-hoi-tu-4.jpg\" alt=\"H\u00ecnh v\u1ebd th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5. (\u1ea2nh: T\u00e1c gi\u1ea3)\" width=\"800\" height=\"494\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Anh_cua_vat_qua_thau_kinh_hoi_tu\"><\/span>\u1ea2nh c\u1ee7a v\u1eadt qua th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/thau-kinh-hoi-tu-5.jpg\" alt=\"V\u1eadt qua th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 qua ba tr\u01b0\u1eddng h\u1ee3p. (\u1ea2nh: S\u01b0u t\u1ea7m Internet)\" width=\"800\" height=\"296\"><\/p>\n<table style=\"border-collapse: collapse;width: 100%;border-color: #4e4c50;border-style: solid\" border=\"0.5px\">\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6\" rowspan=\"2\">\n<p dir=\"ltr\">Kho\u1ea3ng c\u00e1ch t\u1eeb v\u1eadt \u0111\u1ebfn th\u1ea5u k\u00ednh (d)<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6\" colspan=\"2\">\n<p dir=\"ltr\" style=\"text-align: center\">\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a \u1ea3nh<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;border: 0.5px solid #4e4c50;background-color: #f8cac6\">\n<p dir=\"ltr\">V\u1ecb tr\u00ed \u1ea3nh (d\u2019)<\/p>\n<p dir=\"ltr\">(CO = C\u2019O = 2OF)<\/p>\n<\/td>\n<td style=\"text-align: center;border: 0.5px solid #4e4c50;background-color: #f8cac6\">\n<p dir=\"ltr\">T\u00ednh ch\u1ea5t \u1ea3nh<\/p>\n<\/td>\n<\/tr>\n<tr style=\"background-color: #fbeeb8\">\n<td style=\"border: 0.5px solid #4e4c50;text-align: center\">\n<p dir=\"ltr\">V\u1eadt \u1edf r\u1ea5t xa th\u1ea5u k\u00ednh<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;text-align: center\">\n<p dir=\"ltr\">d\u2019 = OF\u2019<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;text-align: center\">\n<p dir=\"ltr\">\u1ea3nh th\u1eadt\u00a0<\/p>\n<\/td>\n<\/tr>\n<tr style=\"background-color: #fbeeb8\">\n<td style=\"border: 0.5px solid #4e4c50;text-align: center\">\n<p dir=\"ltr\">d &gt; 2 f<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;text-align: center\">\n<p dir=\"ltr\">\u1ea3nh \u1edf F\u2019 C\u2019<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;text-align: center\">\n<p dir=\"ltr\">\u1ea3nh th\u1eadt ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi v\u1eadt v\u00e0 nh\u1ecf h\u01a1n v\u1eadt<\/p>\n<\/td>\n<\/tr>\n<tr style=\"background-color: #fbeeb8\">\n<td style=\"border: 0.5px solid #4e4c50;text-align: center\">\n<p dir=\"ltr\">d = 2 f\u00a0<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;text-align: center\">\n<p dir=\"ltr\">\u1ea3nh \u1edf C\u2019 (v\u1edbi OC\u2019 = 2OF)<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;text-align: center\">\n<p dir=\"ltr\">\u1ea3nh th\u1eadt ng\u01b0\u1eddi chi\u1ec1u v\u1edbi v\u1eadt v\u00e0 b\u1eb1ng v\u1eadt<\/p>\n<\/td>\n<\/tr>\n<tr style=\"background-color: #fbeeb8\">\n<td style=\"border: 0.5px solid #4e4c50;text-align: center\">\n<p dir=\"ltr\">f = d &lt; 2 f\u00a0<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;text-align: center\">\n<p dir=\"ltr\">t\u1eeb C\u2019 \u0111\u1ebfn \u221e<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;text-align: center\">\n<p dir=\"ltr\">\u1ea3nh th\u1eadt ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi v\u1eadt v\u00e0 l\u1edbn h\u01a1n v\u1eadt<\/p>\n<\/td>\n<\/tr>\n<tr style=\"background-color: #fbeeb8\">\n<td style=\"border: 0.5px solid #4e4c50;text-align: center\">\n<p dir=\"ltr\">d =\u00a0 f<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;text-align: center\">\n<p dir=\"ltr\">\u1edf \u221e<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;text-align: center\">\n<p dir=\"ltr\">kh\u00f4ng cho \u1ea3nh<\/p>\n<\/td>\n<\/tr>\n<tr style=\"background-color: #fbeeb8\">\n<td style=\"border: 0.5px solid #4e4c50;text-align: center\">\n<p dir=\"ltr\">d &lt; f\u00a0<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;text-align: center\">\n<p dir=\"ltr\">tr\u01b0\u1edbc th\u1ea5u k\u00ednh<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;text-align: center\">\n<p dir=\"ltr\">\u1ea3nh \u1ea3o, c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt v\u00e0 l\u1edbn h\u01a1n v\u1eadt<\/p>\n<\/td>\n<\/tr>\n<\/table>\n<p dir=\"ltr\">Mu\u1ed1n d\u1ef1ng \u1ea3nh A\u2019B\u2019 c\u1ee7a \u0111o\u1ea1n AB qua th\u1ea5u k\u00ednh (AB vu\u00f4ng g\u00f3c v\u1edbi th\u1ea5u k\u00ednh v\u00e0 \u0111i\u1ec3m A n\u1eb1m tr\u00ean tr\u1ee5c ch\u00ednh \u25b3), ch\u1ec9 c\u1ea7n d\u1ef1ng \u1ea3nh B\u2019 c\u1ee7a B b\u1eb1ng hai trong ba tia s\u00e1ng \u0111\u1eb7c bi\u1ec7t, t\u1eeb \u0111\u00f3 h\u1ea1 B\u2019 vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c ch\u00ednh \u25b3 th\u00ec ta s\u1ebd c\u00f3 \u0111\u01b0\u1ee3c \u1ea3nh A\u2019 c\u1ee7a A.\u00a0<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/thau-kinh-hoi-tu-6.jpg\" alt=\"\" width=\"500\" height=\"221\"><\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/thau-kinh-hoi-tu-7.jpg\" alt=\"\" width=\"500\" height=\"219\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cong_thuc_thau_kinh_hoi_tu\"><\/span>C\u00f4ng th\u1ee9c th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">C\u00f4ng th\u1ee9c li\u00ean h\u1ec7 gi\u1eefa v\u1ecb tr\u00ed c\u1ee7a v\u1eadt, v\u1ecb tr\u00ed c\u1ee7a \u1ea3nh v\u00e0 ti\u00eau c\u1ef1 c\u1ee7a th\u1ea5u k\u00ednh<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/cong-thuc-thau-kinh-hoi-tu-1.png\" alt=\"\" width=\"500\" height=\"83\"><\/p>\n<p dir=\"ltr\">Quy \u01b0\u1edbc v\u1ec1 d\u1ea5u:\u00a0<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5: f &gt; 0<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Th\u1ea5u k\u00ednh ph\u00e2n k\u1ef3: f &lt; 0<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u1ea2nh l\u00e0 th\u1eadt: d\u2019 &gt; 0<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u1ea2nh l\u00e0 \u1ea3o: d\u2019 &lt; 0<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">V\u1eadt l\u00e0 th\u1eadt: d &gt; 0<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">C\u00f4ng th\u1ee9c s\u1ed1 ph\u00f3ng \u0111\u1ea1i c\u1ee7a th\u1ea5u k\u00ednh:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/cong-thuc-thau-ki_h-hoi-tu-2.png\" alt=\"\" width=\"500\" height=\"72\"><\/p>\n<p>\u00a0<\/p>\n<p dir=\"ltr\">Quy \u01b0\u1edbc v\u1ec1 d\u1ea5u:\u00a0<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u1ea2nh v\u00e0 v\u1eadt c\u00f9ng chi\u1ec1u: k &gt; 0<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u1ea2nh v\u00e0 v\u1eadt l\u00e0 ng\u01b0\u1ee3c chi\u1ec1u: k &lt; 0<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">C\u00f4ng th\u1ee9c t\u00ednh \u0111\u1ed9 t\u1ee5 c\u1ee7a th\u1ea5u k\u00ednh:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/cong-thuc-thau-kinh-hoi-tu-3.png\" alt=\"\" width=\"500\" height=\"74\"><\/p>\n<p dir=\"ltr\">Trong \u0111\u00f3:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">n: chi\u1ebft su\u1ea5t c\u1ee7a ch\u1ea5t l\u00e0m th\u1ea5u k\u00ednh<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">D: \u0111\u1ed9 t\u1ee5 c\u1ee7a th\u1ea5u k\u00ednh\u00a0<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">f: ti\u00eau c\u1ef1 c\u1ee7a th\u1ea5u k\u00ednh (m)<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">R1; R2: b\u00e1n k\u00ednh c\u1ee7a c\u00e1c m\u1eb7t cong (R = \u221e cho tr\u01b0\u1eddng h\u1ee3p m\u1eb7t ph\u1eb3ng) (m)<\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Ung_dung_cua_thau_kinh_hoi_tu_trong_doi_song\"><\/span>\u1ee8ng d\u1ee5ng c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 trong \u0111\u1eddi s\u1ed1ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/thau-kinh-hoi-tu-8.jpg\" alt=\"H\u00ecnh \u1ea3nh th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m k\u00ednh l\u00fap. (\u1ea2nh: S\u01b0u t\u1ea7m Internet)\" width=\"800\" height=\"494\"><\/p>\n<p dir=\"ltr\">\u0110\u1ed1i v\u1edbi th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5, ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u m\u1ee5c \u0111\u00edch kh\u00e1c nhau trong \u0111\u1eddi s\u1ed1ng. C\u00f3 th\u1ec3 k\u1ec3 \u0111\u1ebfn m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng nh\u01b0:\u00a0<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Thay \u0111\u1ed5i ch\u00f9m tia t\u1eeb song song th\u00e0nh ch\u00f9m tia s\u00e1ng h\u1ed9i t\u1ee5.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">D\u00f9ng l\u00e0m v\u1eadt k\u00ednh v\u00e0 th\u1ecb k\u00ednh \u1edf k\u00ednh hi\u1ec3n vi ho\u1eb7c k\u00ednh thi\u00ean v\u0103n.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">D\u00f9ng l\u00e0m k\u00ednh \u1edf m\u00e1y \u1ea3nh.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">D\u00f9ng l\u00e0m k\u00ednh l\u00fap.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">D\u00f9ng l\u00e0m k\u00ednh ch\u1eefa t\u1eadt vi\u1ec5n th\u1ecb, l\u00e3o th\u1ecb.\u00a0<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u0110\u00f4i khi th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 c\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p kh\u1ea9n c\u1ea5p nh\u01b0 t\u1ea1o ra l\u1eeda.<\/p>\n<\/li>\n<\/ul>\n<p>Xem th\u00eam: Th\u1ea5u k\u00ednh ph\u00e2n k\u00ec l\u00e0 g\u00ec? \u1ea2nh c\u1ee7a m\u1ed9t v\u1eadt qua th\u1ea5u k\u00ednh ph\u00e2n k\u00ec c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m g\u00ec? (V\u1eadt l\u00fd 9)<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mot_so_bai_tap_thau_kinh_hoi_tu_lop_9\"><\/span>M\u1ed9t s\u1ed1 b\u00e0i t\u1eadp th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 l\u1edbp 9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">C\u00e2u 1: Th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m bi\u1ebfn ch\u00f9m tia t\u1edbi song song th\u00e0nh ch\u00f9m tia g\u00ec?\u00a0<\/p>\n<p dir=\"ltr\">A. Ch\u00f9m tia ph\u1ea3n x\u1ea1.<\/p>\n<p dir=\"ltr\">B. Ch\u00f9m tia l\u00f3 h\u1ed9i t\u1ee5.<\/p>\n<p dir=\"ltr\">C. Ch\u00f9m tia l\u00f3 ph\u00e2n k\u1ef3.<\/p>\n<p dir=\"ltr\">D. Ch\u00f9m tia l\u00f3 song song kh\u00e1c.<\/p>\n<p dir=\"ltr\">C\u00e2u 2: Khi m\u00e0 tia t\u1edbi \u0111i qua quang t\u00e2m c\u1ee7a m\u1ed9t chi\u1ebfc th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 cho tia l\u00f3?<\/p>\n<p dir=\"ltr\">A. \u0110i qua ti\u00eau \u0111i\u1ec3m v\u00e0 \u0111i qua quang t\u00e2m<\/p>\n<p dir=\"ltr\">B. Song song v\u1edbi tr\u1ee5c ch\u00ednh v\u00e0 \u0111i qua ti\u00eau \u0111i\u1ec3m<\/p>\n<p dir=\"ltr\">C. Truy\u1ec1n th\u1eb3ng theo ph\u01b0\u01a1ng c\u1ee7a tia t\u1edbi<\/p>\n<p dir=\"ltr\">D. C\u00f3 \u0111\u01b0\u1eddng k\u00e9o d\u00e0i \u0111i qua ti\u00eau \u0111i\u1ec3m<\/p>\n<p dir=\"ltr\">C\u00e2u 3: V\u1eadt li\u1ec7u n\u00e0o th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 l\u00e0m ra m\u1ed9t chi\u1ebfc th\u1ea5u k\u00ednh?<\/p>\n<p dir=\"ltr\">A. Th\u1ee7y tinh trong<\/p>\n<p dir=\"ltr\">B. Nh\u1ef1a c\u00f3 m\u00e0u \u0111\u1ee5c<\/p>\n<p dir=\"ltr\">C. Nh\u00f4m<\/p>\n<p dir=\"ltr\">D. N\u01b0\u1edbc<\/p>\n<p dir=\"ltr\">C\u00e2u 4: Kh\u1eb3ng \u0111\u1ecbnh n\u00e0o d\u01b0\u1edbi \u0111\u00e2y l\u00e0 \u0111\u00fang khi n\u00f3i v\u1ec1 th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5?<\/p>\n<p dir=\"ltr\">A. Tr\u1ee5c ch\u00ednh c\u1ee7a th\u1ea5u k\u00ednh l\u00e0 \u0111\u01b0\u1eddng th\u1eb3ng b\u1ea5t k\u00ec c\u00f3 chi\u1ec1u d\u00e0i v\u00f4 t\u1eadn.<\/p>\n<p dir=\"ltr\">B. Quang t\u00e2m c\u1ee7a th\u1ea5u k\u00ednh c\u00e1ch \u0111\u1ec1u hai ti\u00eau \u0111i\u1ec3m.<\/p>\n<p dir=\"ltr\">C. Ti\u00eau \u0111i\u1ec3m c\u1ee7a th\u1ea5u k\u00ednh ph\u1ee5 thu\u1ed9c v\u00e0o di\u1ec7n t\u00edch c\u1ee7a th\u1ea5u k\u00ednh.<\/p>\n<p dir=\"ltr\">D. Kho\u1ea3ng c\u00e1ch c\u1ee7a hai ti\u00eau \u0111i\u1ec3m \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ti\u00eau c\u1ef1 c\u1ee7a th\u1ea5u k\u00ednh.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 150%\">C\u00e2u 5: M\u1ed9t v\u1eadt s\u00e1ng AB c\u00f3 d\u1ea1ng m\u0169i t\u00ean cao 6cm \u0111\u1eb7t vu\u00f4ng g\u00f3c tr\u1ee5c ch\u00ednh c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5, c\u00e1ch th\u1ea5u k\u00ednh 15cm. Th\u1ea5u k\u00ednh c\u00f3 ti\u00eau c\u1ef1 10 cm.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 150%\">a\/ D\u1ef1ng \u1ea3nh c\u1ee7a v\u1eadt qua th\u1ea5u k\u00ednh<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 150%\">b\/ X\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc v\u00e0 v\u1ecb tr\u00ed c\u1ee7a \u1ea3nh<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 150%\">C\u00e2u 6: M\u1ed9t v\u1eadt s\u00e1ng AB c\u00f3 d\u1ea1ng m\u0169i t\u00ean cao 6cm \u0111\u1eb7t vu\u00f4ng g\u00f3c tr\u1ee5c ch\u00ednh c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5, c\u00e1ch th\u1ea5u k\u00ednh 10cm. Th\u1ea5u k\u00ednh c\u00f3 ti\u00eau c\u1ef1 15 cm.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 150%\">a\/ D\u1ef1ng \u1ea3nh c\u1ee7a v\u1eadt qua th\u1ea5u k\u00ednh<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 150%\">b\/ X\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc v\u00e0 v\u1ecb tr\u00ed c\u1ee7a \u1ea3nh<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 150%\">C\u00e2u 7: M\u1ed9t v\u1eadt s\u00e1ng AB c\u00f3 d\u1ea1ng m\u0169i t\u00ean \u0111\u1eb7t vu\u00f4ng g\u00f3c tr\u1ee5c ch\u00ednh c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 cho \u1ea3nh th\u1eadt cao 12 cm, c\u00e1ch th\u1ea5u k\u00ednh 30 cm. Th\u1ea5u k\u00ednh c\u00f3 ti\u00eau c\u1ef1 10 cm.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 150%\">X\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc v\u00e0 v\u1ecb tr\u00ed c\u1ee7a v\u1eadt<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 150%\">C\u00e2u 8: V\u1eadt AB \u0111\u1eb7t tr\u01b0\u1edbc m\u1ed9t th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 cho \u1ea3nh . H\u00e3y ch\u1ee9ng minh c\u00e1c c\u00f4ng th\u1ee9c th\u1ea5u k\u00ednh v\u00e0 .<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 150%\">C\u00e2u 9: Cho bi\u1ebft \u0394 l\u00e0 tr\u1ee5c ch\u00ednh c\u1ee7a m\u1ed9t th\u1ea5u k\u00ednh, S l\u00e0 \u0111i\u1ec3m s\u00e1ng, S&#8217;\u00a0l\u00e0 \u1ea3nh c\u1ee7a S t\u1ea1o b\u1edfi th\u1ea5u k\u00ednh.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 150%\">a) S&#8217;\u00a0l\u00e0 \u1ea3nh th\u1eadt hay \u1ea3nh \u1ea3o?<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 150%\">b) Th\u1ea5u k\u00ednh \u0111\u00e3 cho l\u00e0 th\u1ea5u k\u00ednh g\u00ec?<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 150%\">c) V\u1ebd h\u00ecnh, n\u00eau c\u00e1ch d\u1ef1ng.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 150%\">C\u00e2u 10: Cho v\u1eadt s\u00e1ng AB cao 1 cm \u0111\u1eb7t tr\u01b0\u1edbc th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 v\u00e0 c\u00e1ch th\u1ea5u k\u00ednh 15 cm, \u1ea3nhth\u1eadt cao 0,6 cm<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 150%\">a. V\u1ebd \u1ea3nh<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 150%\">b. T\u00ednh ti\u00eau c\u1ef1 c\u1ee7a th\u1ea5u k\u00ednh v\u00e0 kho\u1ea3ng c\u00e1ch t\u1eeb \u1ea3nh \u0111\u1ebfn th\u1ea5u k\u00ednh<\/p>\n<p>Tr\u00ean \u0111\u00e2y l\u00e0 to\u00e0n b\u1ed9 ki\u1ebfn th\u1ee9c v\u1ec1 Th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 l\u00e0 g\u00ec? \u1ea2nh c\u1ee7a m\u1ed9t v\u1eadt qua th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m g\u00ec? (V\u1eadt l\u00fd 9) m\u00e0 Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef bi\u00ean so\u1ea1n. Mong r\u1eb1ng nh\u1eefng ki\u1ebfn th\u1ee9c n\u00e0y s\u1ebd gi\u00fap cho c\u00e1c em trong qu\u00e1 tr\u00ecnh h\u1ecdc t\u1eadp v\u00e0 t\u00ecm hi\u1ec3u. Ngo\u00e0i ra c\u00e1c em h\u00e3y theo d\u00f5i chuy\u00ean m\u1ee5c ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n \u0111\u1ec3 c\u00f3 th\u1ec3 t\u00ecm hi\u1ec3u c\u00e1c th\u00f4ng tin th\u00fa v\u1ecb v\u1ec1 c\u00e1c m\u00f4n h\u1ecdc kh\u00e1c.<\/p>\n<p>Ngu\u1ed3n: <a href=\"http:\/\/www.ckconitsha.com\/vn\/\">http:\/\/www.ckconitsha.com\/vn\/<\/a> T\u00e1c gi\u1ea3: <a href=\"https:\/\/www.ckconitsha.com\/vn\/author\/nguyenlandung\">Nguy\u1ec5n L\u00e2n d\u0169ng<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 l\u00e0 m\u1ed9t ph\u1ea7n ki\u1ebfn th\u1ee9c v\u1ec1 th\u1ea5u k\u00ednh m\u00e0 c\u00e1c em s\u1ebd \u0111\u01b0\u1ee3c h\u1ecdc trong ch\u01b0\u01a1ng tr\u00ecnh V\u1eadt l\u00ed 9. V\u1eady \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 ki\u1ebfn th\u1ee9c n\u00e0y t\u1eeb kh\u00e1i ni\u1ec7m, \u0111\u1eb7c \u0111i\u1ec3m, c\u00e1ch v\u1ebd, c\u00f4ng th\u1ee9c t\u00ednh,&#8230; H\u00e3y c\u00f9ng Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef kh\u00e1m ph\u00e1 r\u00f5&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[],"class_list":["post-19273","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/19273","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/comments?post=19273"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/19273\/revisions"}],"predecessor-version":[{"id":24375,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/19273\/revisions\/24375"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=19273"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=19273"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=19273"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}