Quang ph\u1ed5, Tia h\u1ed3ng ngo\u1ea1i,\u00a0tia t\u1eed ngo\u1ea1i, Tia ronghen, Thang s\u00f3ng \u0111i\u1ec7n t\u1eeb… l\u00e0 nh\u1eefng lo\u1ea1i tia th\u01b0\u1eddng g\u1eb7p trong nh\u1eefng b\u00e0i to\u00e1n v\u1ec1 s\u00f3ng \u00e1nh s\u00e1ng. V\u1eady, ta c\u1ea7n bi\u1ebft chi ti\u1ebft b\u1ea3n ch\u1ea5t v\u1ec1 c\u00e1c lo\u1ea1i s\u00f3ng \u00e1nh s\u00e1ng th\u00ec m\u1edbi d\u1ec5 r\u00e0ng trong vi\u1ec7c gi\u1ea3i c\u00e1c b\u00e0i to\u00e1n \u0111\u00f3.<\/p>\n

\n
1. \n

   B\u1ea3n ch\u1ea5t v\u1ec1 c\u00e1c lo\u1ea1i s\u00f3ng \u00e1nh s\u00e1ng: Quang ph\u1ed5<\/strong><\/h2>\n<\/li>\n<\/ol>\n

   1.1 M\u00e1y quang ph\u1ed5 l\u0103ng k\u00ednh.<\/strong><\/p>\n

   \n
   1. a) Kh\u00e1i ni\u1ec7m:<\/em>l\u00e0 d\u1ee5ng c\u1ee5 d\u00f9ng \u0111\u1ec3 ph\u00e2n t\u00edch m\u1ed9t ch\u00f9m \u00e1nh s\u00e1ng ph\u1ee9c t\u1ea1p th\u00e0nh c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u01a1n s\u1eafc kh\u00e1c nhau.<\/li>\n
   2. b) C\u1ea5u t\u1ea1o:<\/em>Theo c\u00e1ch \u0111\u01a1n gi\u1ea3n nh\u1ea5t, m\u1ed9t m\u00e1y quang ph\u1ed5 l\u0103ng k\u00ednh g\u1ed3m c\u00f3 3 b\u1ed9 ph\u1eadn ch\u00ednh.<\/li>\n<\/ol>\n

      –\u00a0\u1ed0ng chu\u1ea9n tr\u1ef1c<\/strong>\u00a0c\u00f3 t\u00e1c d\u1ee5ng bi\u1ebfn ch\u00f9m \u00e1nh s\u00e1ng \u0111i v\u00e0o khe h\u1eb9p F th\u00e0nh ch\u00f9m tia song song nh\u1edd m\u1ed9t th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5.<\/p>\n

      –\u00a0H\u1ec7 t\u00e1n s\u1eafc<\/strong>\u00a0g\u1ed3m m\u1ed9t ho\u1eb7c hai l\u0103ng k\u00ednh c\u00f3 t\u00e1c d\u1ee5ng l\u00e0m t\u00e1n s\u1eafc ch\u00f9m \u00e1nh s\u00e1ng v\u1eeba ra kh\u1ecfi \u1ed1ng chu\u1ea9n tr\u1ef1c.<\/p>\n

      –\u00a0\u1ed0ng ng\u1eafm<\/strong>\u00a0ho\u1eb7c\u00a0bu\u1ed3ng t\u1ed1i<\/strong>\u00a0(bu\u1ed3ng \u1ea3nh) l\u00e0 n\u01a1i ta \u0111\u1eb7t m\u1eaft v\u00e0o \u0111\u1ec3 quan s\u00e1t quang ph\u1ed5 c\u1ee7a ngu\u1ed3n s\u00e1ng c\u1ea7n nghi\u00ean c\u1ee9u ho\u1eb7c \u0111\u1ec3 thu \u1ea3nh quang ph\u1ed5 c\u1ee7a ngu\u1ed3n s\u00e1ng c\u1ea7n nghi\u00ean c\u1ee9u.<\/p>\n

      <\/p>\n

      \n
      1. c) Ho\u1ea1t \u0111\u1ed9ng:<\/em><\/li>\n<\/ol>\n

         Chi\u1ebfu v\u00e0o khe F c\u1ee7a \u1ed1ng chu\u1ea9n tr\u1ef1c C m\u1ed9t ch\u00f9m \u00e1nh s\u00e1ng ph\u00e1t ra t\u1eeb m\u1ed9t ngu\u1ed3n s\u00e1ng J. Gi\u1ea3 s\u1eed ngu\u1ed3n J ph\u00e1t ra hai b\u1ee9c x\u1ea1 \u0111\u01a1n s\u1eafc \u0111\u1ecf v\u00e0 t\u00edm.<\/p>\n

         – \u00c1nh s\u00e1ng ph\u00e1t ra t\u1eeb ngu\u1ed3n J s\u1ebd \u0111\u01b0\u1ee3c th\u1ea5u k\u00ednh L_{1<\/sub>\u00a0bi\u1ebfn th\u00e0nh ch\u00f9m tia song song (ng\u01b0\u1eddi ta b\u1ed1 tr\u00ed cho khe h\u1eb9p F n\u1eb1m ngay tr\u00ean ti\u00eau di\u1ec7n v\u1eadt c\u1ee7a th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 L1<\/sub>)<\/p>\n}

         – Khi ch\u00f9m s\u00e1ng song song n\u00e0y \u0111i v\u00e0o l\u0103ng k\u00ednh th\u00ec ch\u00fang b\u1ecb t\u00e1ch ra th\u00e0nh hai ch\u00f9m s\u00e1ng song song, m\u1ed9t ch\u00f9m m\u00e0u \u0111\u1ecf v\u00e0 m\u1ed9t ch\u00f9m m\u00e0u t\u00edm l\u1ec7ch theo hai ph\u01b0\u01a1ng kh\u00e1c nhau.<\/p>\n

         – Nh\u1edd th\u1ea5u k\u00ednh h\u1ed9i t\u1ee5 L_{2<\/sub>\u00a0m\u00e0 tr\u00ean m\u00e0n M c\u1ee7a bu\u1ed3ng t\u1ed1i ta thu \u0111\u01b0\u1ee3c hai v\u1ea1ch quang ph\u1ed5: V\u1ea1ch S1<\/sub>\u00a0l\u00e0 v\u1ea1ch m\u00e0u \u0111\u1ecf; v\u1ea1ch S2<\/sub>\u00a0l\u00e0 v\u1ea1ch m\u00e0u t\u00edm.<\/p>\n}

         1.2 C\u00e1c lo\u1ea1i quang ph\u1ed5.<\/strong><\/p>\n

         1.2.1 Quang ph\u1ed5 li\u00ean t\u1ee5c:<\/p>\n

         – \u0110\u1ecbnh ngh\u0129a<\/em>: l\u00e0 m\u1ed9t d\u1ea3i c\u00f3 m\u00e0u t\u1eeb \u0111\u1ecf \u0111\u1ebfn t\u00edm n\u1ed1i li\u1ec1n nhau m\u1ed9t c\u00e1ch li\u00ean t\u1ee5c.<\/p>\n

         <\/p>\n

         – Ngu\u1ed3n ph\u00e1t<\/em>: Do c\u00e1c ch\u1ea5t r\u1eafn, l\u1ecfng ho\u1eb7c kh\u00ed c\u00f3 \u00e1p su\u1ea5t l\u1edbn ph\u00e1t ra khi b\u1ecb nung n\u00f3ng.<\/p>\n

         – \u0110\u1eb7c \u0111i\u1ec3m<\/em>:<\/p>\n

         + Quang ph\u1ed5 li\u00ean t\u1ee5c c\u1ee7a c\u00e1c ch\u1ea5t kh\u00e1c nhau \u1edf c\u00f9ng m\u1ed9t nhi\u1ec7t \u0111\u1ed9 th\u00ec gi\u1ed1ng nhau v\u00e0 ch\u1ec9 ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec7t \u0111\u1ed9 c\u1ee7a ch\u00fang.<\/p>\n

         +\u00a0Nhi\u1ec7t \u0111\u1ed9 c\u00e0ng cao, quang ph\u1ed5 li\u00ean t\u1ee5c c\u00e0ng m\u1edf r\u1ed9ng d\u1ea7n v\u1ec1 ph\u00eda t\u00edm.<\/p>\n

         – \u1ee8ng d\u1ee5ng<\/em>: x\u00e1c \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9 c\u1ee7a c\u00e1c v\u1eadt ph\u00e1t s\u00e1ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c v\u1eadt \u1edf xa.<\/p>\n

         1.2.2 Quang ph\u1ed5 v\u1ea1ch ph\u00e1t x\u1ea1:<\/p>\n

         – \u0110\u1ecbnh ngh\u0129a<\/em>: l\u00e0 h\u1ec7 th\u1ed1ng nh\u1eefng v\u1ea1ch s\u00e1ng ri\u00eang r\u1ebd, ng\u0103n c\u00e1ch nhau b\u1eb1ng nh\u1eefng kho\u1ea3ng t\u1ed1i.<\/p>\n

         <\/p>\n

         – Ngu\u1ed3n ph\u00e1t<\/em>: do c\u00e1c ch\u1ea5t kh\u00ed \u1edf \u00e1p su\u1ea5t th\u1ea5p ph\u00e1t ra khi b\u1ecb k\u00edch th\u00edch b\u1eb1ng nhi\u1ec7t hay b\u1eb1ng \u0111i\u1ec7n.<\/p>\n

         – \u0110\u1eb7c \u0111i\u1ec3m<\/em>: quang ph\u1ed5 v\u1ea1ch c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 kh\u00e1c nhau th\u00ec r\u1ea5t kh\u00e1c nhau v\u1ec1 s\u1ed1 l\u01b0\u1ee3ng c\u00e1c v\u1ea1ch, v\u1ec1 v\u1ecb tr\u00ed v\u00e0 \u0111\u1ed9 s\u00e1ng t\u1ec9 \u0111\u1ed1i gi\u1eefa c\u00e1c v\u1ea1ch. M\u1ed7i nguy\u00ean t\u1ed1 h\u00f3a h\u1ecdc c\u00f3 m\u1ed9t quang ph\u1ed5 v\u1ea1ch \u0111\u1eb7c tr\u01b0ng c\u1ee7a nguy\u00ean t\u1ed1 \u0111\u00f3.<\/p>\n

         – \u1ee8ng d\u1ee5ng<\/em>: \u0111\u1ec3 nh\u1eadn bi\u1ebft s\u1ef1 c\u00f3 m\u1eb7t c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 trong h\u1ed7n h\u1ee3p hay h\u1ee3p ch\u1ea5t.<\/p>\n

         1.2.3 Quang ph\u1ed5 v\u1ea1ch h\u1ea5p th\u1ee5:<\/p>\n

         – \u0110\u1ecbnh ngh\u0129a<\/em>: l\u00e0 h\u1ec7 th\u1ed1ng nh\u1eefng v\u1ea1ch t\u1ed1i tr\u00ean n\u1ec1n quang ph\u1ed5 li\u00ean t\u1ee5c. Th\u1ef1c ch\u1ea5t l\u00e0 quang ph\u1ed5 li\u00ean t\u1ee5c b\u1ecb thi\u1ebfu m\u1ed9t s\u1ed1 v\u1ea1ch m\u00e0u do b\u1ecb ch\u1ea5t kh\u00ed (hay h\u01a1i kim lo\u1ea1i) h\u1ea5p th\u1ee5.<\/p>\n

         <\/p>\n

         – Ngu\u1ed3n ph\u00e1t<\/em>: chi\u1ebfu \u00e1nh s\u00e1ng tr\u1eafng qua m\u1ed9t ch\u1ea5t h\u01a1i b\u1ecb nung n\u00f3ng (nhi\u1ec7t \u0111\u1ed9 ch\u1ea5t h\u01a1i th\u1ea5p h\u01a1n nhi\u1ec7t \u0111\u1ed9 ngu\u1ed3n s\u00e1ng tr\u1eafng)<\/p>\n

         – \u00a0\u0110\u1eb7c \u0111i\u1ec3m<\/em>: c\u00e1c v\u1ea1ch t\u1ed1i xu\u1ea5t hi\u1ec7n \u0111\u00fang v\u1ecb tr\u00ed c\u00e1c v\u1ea1ch m\u00e0u c\u1ee7a quang ph\u1ed5 v\u1ea1ch ph\u00e1t x\u1ea1 c\u1ee7a ch\u1ea5t h\u01a1i \u0111\u00f3.<\/p>\n

         – \u1ee8ng d\u1ee5ng<\/em>: x\u00e1c \u0111\u1ecbnh th\u00e0nh ph\u1ea7n c\u1ee7a h\u1ee3p ch\u1ea5t<\/p>\n

         -PS:<\/strong>\u00a0Quang ph\u1ed5 c\u1ee7a \u00e1nh s\u00e1ng M\u1eb7t Tr\u1eddi m\u00e0 ta thu \u0111\u01b0\u1ee3c tr\u00ean Tr\u00e1i \u0110\u1ea5t l\u00e0 quang ph\u1ed5 v\u1ea1ch h\u1ea5p th\u1ee5.<\/p>\n

         H\u00ecnh sau \u0111\u00e2y gi\u00fap ta c\u00f3 c\u00e1i nh\u00ecn t\u1ed5ng qu\u00e1t v\u1ec1 s\u1ef1 kh\u00e1c nhau gi\u1eefa c\u00e1c lo\u1ea1i quang ph\u1ed5.<\/strong><\/p>\n

         <\/p>\n

         \n
         1. \n

            B\u1ea3n ch\u1ea5t v\u1ec1 c\u00e1c lo\u1ea1i s\u00f3ng \u00e1nh s\u00e1ng:\u00a0<\/strong>Tia h\u1ed3ng ngo\u1ea1i v\u00e0 tia t\u1eed ngo\u1ea1i<\/h3>\n<\/li>\n<\/ol>\n

            2.1 Tia h\u1ed3ng ngo\u1ea1i:<\/p>\n

            – \u0110\u1ecbnh ngh\u0129a<\/em>: l\u00e0 nh\u1eefng b\u1ee9c x\u1ea1 kh\u00f4ng nh\u00ecn th\u1ea5y c\u00f3 b\u01b0\u1edbc s\u00f3ng t\u1eeb 0,76\u00a0\u00a0\u0111\u1ebfn v\u00e0i mm (l\u1edbn h\u01a1n b\u01b0\u1edbc s\u00f3ng c\u1ee7a \u00e1nh s\u00e1ng \u0111\u1ecf v\u00e0 nh\u1ecf h\u01a1n b\u01b0\u1edbc s\u00f3ng c\u1ee7a s\u00f3ng v\u00f4 tuy\u1ebfn c\u1ef1c ng\u1eafn).<\/p>\n

            – B\u1ea3n ch\u1ea5t<\/em>: l\u00e0 s\u00f3ng \u0111i\u1ec7n t\u1eeb.<\/p>\n

            – Ngu\u1ed3n ph\u00e1t<\/em>:<\/p>\n

            + C\u00e1c v\u1eadt c\u00f3 nhi\u1ec7t \u0111\u1ed9 l\u1edbn h\u01a1n 0^{0<\/sup>K \u0111\u1ec1u ph\u00e1t ra tia h\u1ed3ng ngo\u1ea1i.<\/p>\n}

            + M\u00f4i tr\u01b0\u1eddng xung quanh c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n 0^{0<\/sup>K n\u00ean c\u0169ng ph\u00e1t ra tia h\u1ed3ng ngo\u1ea1i. Th\u00e0nh th\u1eed \u0111\u1ec3 ph\u00e2n bi\u1ec7t tia h\u1ed3ng ngo\u1ea1i do v\u1eadt ph\u00e1t ra th\u00ec v\u1eadt ph\u1ea3i c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n m\u00f4i tr\u01b0\u1eddng.<\/p>\n}

            + V\u1eadt c\u00f3 nhi\u1ec7t \u0111\u1ed9 c\u00e0ng th\u1ea5p th\u00ec c\u00e0ng \u00edt ph\u00e1t ra tia c\u00f3 b\u01b0\u1edbc s\u00f3ng ng\u1eafn m\u00e0 ch\u1ec9 ph\u00e1t ra c\u00e1c tia c\u00f3 b\u01b0\u1edbc s\u00f3ng d\u00e0i.<\/p>\n

            + C\u01a1 th\u1ec3 con ng\u01b0\u1eddi\u00a0c\u00f3 nhi\u1ec7t \u0111\u1ed9 b\u00ecnh th\u01b0\u1eddng l\u00e0 37^{o<\/sup>C n\u00ean l\u00e0 m\u1ed9t ngu\u1ed3n ph\u00e1t ra tia h\u1ed3ng ngo\u1ea1i v\u1edbi b\u01b0\u1edbc s\u00f3ng kho\u1ea3ng 9\u00a0.<\/p>\n}

            + M\u1eb7t tr\u1eddi\u00a0l\u00e0 m\u1ed9t ngu\u1ed3n ph\u00e1t tia h\u1ed3ng ngo\u1ea1i m\u1ea1nh.<\/p>\n

            M\u1eaft ng\u01b0\u1eddi kh\u00f4ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c tia h\u1ed3ng ngo\u1ea1i, v\u00ec th\u1ebf \u0111\u1ec3 c\u00f3 th\u1ec3 xem c\u00e1c v\u1eadt ph\u00e1t ra tia h\u1ed3ng ngo\u1ea1i nh\u01b0 th\u1ebf n\u00e0o ng\u01b0\u1eddi ta ph\u1ea3i d\u00f9ng \u0111\u1ebfn k\u00ednh \u1ea3nh (hay phim \u1ea3nh) h\u1ed3ng ngo\u1ea1i ho\u1eb7c c\u00e1c c\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i.<\/p>\n

            – T\u00e1c d\u1ee5ng<\/em>:<\/p>\n

            + T\u00e1c d\u1ee5ng nhi\u1ec7t.<\/p>\n

            + C\u00f3 kh\u1ea3 n\u0103ng g\u00e2y ra m\u1ed9t s\u1ed1 ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc.<\/p>\n

            + T\u00e1c d\u1ee5ng l\u00ean k\u00ednh \u1ea3nh h\u1ed3ng ngo\u1ea1i.<\/p>\n

            + C\u00f3 th\u1ec3 bi\u1ebfn \u0111i\u1ec7u \u0111\u01b0\u1ee3c nh\u01b0 s\u00f3ng \u0111i\u1ec7n t\u1eeb cao t\u1ea7n n\u00ean \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong c\u00e1c b\u1ed9 \u0111i\u1ec1u khi\u1ec3n t\u1eeb xa d\u00f9ng tia h\u1ed3ng ngo\u1ea1i.<\/p>\n

            + S\u01b0\u1edfi \u1ea5m da cho m\u00e1u l\u01b0u th\u00f4ng.<\/p>\n

            + s\u1ea5y kh\u00f4.<\/p>\n

            2.2 Tia t\u1eed ngo\u1ea1i:<\/p>\n

            – \u0110\u1ecbnh ngh\u0129a: l\u00e0 nh\u1eefng b\u1ee9c x\u1ea1 kh\u00f4ng nh\u00ecn th\u1ea5y, c\u00f3 b\u01b0\u1edbc s\u00f3ng t\u1eeb v\u00e0i nanomet \u0111\u1ebfn 0,38\u00a0\u00a0(b\u01b0\u1edbc s\u00f3ng nh\u1ecf h\u01a1n b\u01b0\u1edbc s\u00f3ng \u00e1nh s\u00e1ng t\u00edm).<\/p>\n

            – B\u1ea3n ch\u1ea5t: s\u00f3ng \u0111i\u1ec7n t\u1eeb.<\/p>\n

            – Ngu\u1ed3n ph\u00e1t: Nh\u1eefng v\u1eadt \u0111\u01b0\u1ee3c nung n\u00f3ng tr\u00ean 2000^{0<\/sup>C \u0111\u1ec1u ph\u00e1t ra tia t\u1eed ngo\u1ea1i.<\/p>\n}

            – T\u00e1c d\u1ee5ng:<\/p>\n

            +\u00a0B\u1ecb n\u01b0\u1edbc v\u00e0 th\u1ee7y tinh h\u1ea5p th\u1ee5 r\u1ea5t m\u1ea1nh nh\u01b0ng l\u1ea1i h\u1ea7u nh\u01b0 trong su\u1ed1t \u0111\u1ed1i v\u1edbi th\u1ea1ch anh.<\/p>\n

            + t\u00e1c d\u1ee5ng m\u1ea1nh l\u00ean k\u00ednh \u1ea3nh.<\/p>\n

            + l\u00e0m m\u1ed9t s\u1ed1 ch\u1ea5t h\u00f3a h\u1ecdc ph\u00e1t quang.<\/p>\n

            + l\u00e0m ion h\u00f3a kh\u00f4ng kh\u00ed.<\/p>\n

            + g\u00e2y ra ph\u1ea3n \u1ee9ng quang h\u00f3a, quang h\u1ee3p v\u00e0 m\u1ed9t s\u1ed1 t\u00e1c d\u1ee5ng sinh h\u1ecdc kh\u00e1c.<\/p>\n

            + d\u00f9ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u1ebft n\u1ee9t nh\u1ecf, v\u1ebft x\u01b0\u1edbt tr\u00ean b\u1ec1 m\u1eb7t s\u1ea3n ph\u1ea9m ti\u1ec7n.<\/p>\n

            + ch\u1eefa b\u1ec7nh c\u00f2i x\u01b0\u01a1ng.<\/p>\n

            + di\u1ec7t khu\u1ea9n, n\u1ea5m m\u1ed1c, h\u1ee7y di\u1ec7t t\u1ebf b\u00e0o da, …<\/p>\n

            + d\u00f9ng trong ph\u00e2n t\u00edch quang ph\u1ed5.<\/p>\n

            – Ch\u00fa \u00fd:<\/strong>\u00a0Khi m\u1ed9t v\u1eadt ph\u00e1t ra \u0111\u01b0\u1ee3c tia t\u1eed ngo\u1ea1i th\u00ec n\u00f3 \u0111\u1ed3ng th\u1eddi c\u0169ng ph\u00e1t ra tia h\u1ed3ng ngo\u1ea1i v\u00e0 \u00e1nh s\u00e1ng th\u1ea5y \u0111\u01b0\u1ee3c.<\/p>\n

            \n
            1. \n

               B\u1ea3n ch\u1ea5t v\u1ec1 c\u00e1c lo\u1ea1i s\u00f3ng \u00e1nh s\u00e1ng:\u00a0Tia ronghen<\/strong><\/h3>\n<\/li>\n<\/ol>\n

               – \u0110\u1ecbnh ngh\u0129a<\/em>: l\u00e0 s\u00f3ng \u0111i\u1ec7n t\u1eeb c\u00f3 b\u01b0\u1edbc s\u00f3ng n\u1eb1m trong kho\u1ea3ng 10^{-11<\/sup>\u00a0m \u0111\u1ebfn 10-8<\/sup>\u00a0m.<\/p>\n}

               – T\u00ednh ch\u1ea5t:<\/em><\/p>\n

               + \u0111\u00e2m xuy\u00ean m\u1ea1nh, kh\u1ea3 n\u0103ng \u0111\u00e2m xuy\u00ean t\u1ec9 l\u1ec7 ngh\u1ecbch v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang c\u1ee7a v\u1eadt c\u1ea3n.<\/p>\n

               + t\u00e1c d\u1ee5ng m\u1ea1nh l\u00ean k\u00ednh \u1ea3nh.<\/p>\n

               + l\u00e0m ph\u00e1t quang m\u1ed9t s\u1ed1 ch\u1ea5t, ion h\u00f3a ch\u1ea5t kh\u00ed.<\/p>\n

               + t\u00e1c d\u1ee5ng sinh l\u00ed, h\u1ee7y di\u1ec7t t\u1ebf b\u00e0o.<\/p>\n

               + c\u00f3 \u0111\u1ea7y \u0111\u1ee7 t\u00ednh ch\u1ea5t nh\u01b0 s\u00f3ng \u0111i\u1ec7n t\u1eeb.<\/p>\n

               – \u1ee8ng d\u1ee5ng:\u00a0<\/em><\/p>\n

               + chi\u1ebfu, ch\u1ee5p \u0111i\u1ec7n.<\/p>\n

               + d\u00f2 t\u00ecm khuy\u1ebft t\u1eadt trong s\u1ea3n ph\u1ea9m \u0111\u00fac.<\/p>\n

               + ch\u1eefa b\u1ec7nh ung th\u01b0 n\u00f4ng.<\/p>\n

               + nghi\u00ean c\u1ee9u m\u1ea1ng tinh th\u1ec3.<\/p>\n

               \n
               1. \n

                  B\u1ea3n ch\u1ea5t v\u1ec1 c\u00e1c lo\u1ea1i s\u00f3ng \u00e1nh s\u00e1ng:\u00a0Thang s\u00f3ng \u0111i\u1ec7n t\u1eeb<\/h3>\n<\/li>\n<\/ol>\n

                  <\/p>\n","protected":false},"excerpt":{"rendered":"

                  Quang ph\u1ed5, Tia h\u1ed3ng ngo\u1ea1i,\u00a0tia t\u1eed ngo\u1ea1i, Tia ronghen, Thang s\u00f3ng \u0111i\u1ec7n t\u1eeb… l\u00e0 nh\u1eefng lo\u1ea1i tia th\u01b0\u1eddng g\u1eb7p trong nh\u1eefng b\u00e0i to\u00e1n v\u1ec1 s\u00f3ng \u00e1nh s\u00e1ng. V\u1eady, ta c\u1ea7n… <\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[449,450,408,454,462,470],"tags":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts\/9703"}],"collection":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/comments?post=9703"}],"version-history":[{"count":0,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts\/9703\/revisions"}],"wp:attachment":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/media?parent=9703"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/categories?post=9703"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/tags?post=9703"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}