{"id":11317,"date":"2021-11-23T20:41:48","date_gmt":"2021-11-23T13:41:48","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=11317"},"modified":"2021-11-23T21:13:12","modified_gmt":"2021-11-23T14:13:12","slug":"ta%cc%a3i-sao-bong-den-so%cc%a3i-dot-tieu-hao-nhieu-die%cc%a3n-nang","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/ta%cc%a3i-sao-bong-den-so%cc%a3i-dot-tieu-hao-nhieu-die%cc%a3n-nang\/","title":{"rendered":"Ta\u0323i sao bo\u0301ng \u0111e\u0300n s\u01a1\u0323i \u0111\u00f4\u0301t ti\u00eau hao nhi\u00ea\u0300u \u0111i\u00ea\u0323n n\u0103ng?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Trong c\u0103n nha\u0300 cu\u0309a chu\u0301ng ta co\u0301 m\u0103\u0301c r\u00e2\u0301t nhie\u0300u bo\u0301ng \u0111e\u0300n \u0111i\u00ea\u0323n, th\u01b0\u01a1\u0300ng thi\u0300 bu\u00f4\u0309i t\u00f4\u0301i chu\u0301ng ta b\u00e2\u0323t \u0111e\u0300n l\u00ean cho c\u0103n pho\u0300ng sa\u0301ng su\u0309a, va\u0300 mo\u0323i ng\u01b0\u01a1\u0300i th\u01b0\u01a1\u0300ng i\u0301t chu\u0301 y\u0301 \u0111\u00ea\u0301n chu\u0301ng. Nh\u01b0ng chi\u0309 c\u00e2\u0300n quan sa\u0301t ki\u0303 m\u00f4\u0323t chu\u0301t thi\u0300 ba\u0323n co\u0301 th\u00ea\u0309 th\u00e2\u0301y trong s\u00f4\u0301 ca\u0301c bo\u0301ng \u0111i\u00ea\u0323n \u0111o\u0301 co\u0301 th\u00ea\u0309 ph\u00e2n chia la\u0300m hai loa\u0323i, m\u00f4\u0323t loa\u0323i pha\u0301t sa\u0301ng ma\u0300u va\u0300ng va\u0300 sau m\u00f4\u0323t th\u01a1\u0300i gian se\u0303 no\u0301ng l\u00ean co\u0300n m\u00f4\u0323t loa\u0323i pha\u0301t sa\u0301ng ma\u0300u ba\u0323c, nh\u01b0ng kh\u00f4ng pha\u0301t nhi\u00ea\u0323t. Chu\u0301ng ta gia\u0309i thi\u0301ch v\u00ea\u0300 v\u00e2\u0301n \u0111\u00ea\u0300 na\u0300y nh\u01b0 th\u00ea\u0301 na\u0300o?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u01b0\u0323c ra, loa\u0323i th\u01b0\u0301 nh\u00e2\u0301t la\u0300 \u0111e\u0300n \u0111i\u00ea\u0323n v\u01a1\u0301i a\u0301nh sa\u0301ng tr\u0103\u0301ng, khi do\u0300ng \u0111i\u00ea\u0323n cha\u0323y qua d\u00e2y to\u0301c bo\u0301ng \u0111e\u0300n, la\u0300m no\u0301ng d\u00e2y to\u0301c bo\u0301ng \u0111e\u0300n va\u0300 pha\u0301t ra a\u0301nh sa\u0301ng, \u0111\u00e2y la\u0300 loa\u0323i bo\u0301ng \u0111e\u0300n \u0111i\u00ea\u0323n v\u01b0\u0300a pha\u0301t sa\u0301ng v\u01b0\u0300a to\u0309a nhi\u00ea\u0323t, do \u0111o\u0301 no\u0301 \u0111\u01b0\u01a1\u0323c go\u0323i la\u0300 ngu\u00f4\u0300n a\u0301nh sa\u0301ng no\u0301ng. \u0110e\u0300n \u0111i\u00ea\u0323n v\u01a1\u0301i a\u0301nh sa\u0301ng tr\u0103\u0301ng co\u0301 th\u00ea\u0309 bi\u00ea\u0301n m\u00f4\u0323t ph\u00e2\u0300n r\u00e2\u0301t nho\u0309 \u0111i\u00ea\u0323n n\u0103ng tha\u0300nh a\u0301nh sa\u0301ng ma\u0300 ta co\u0301 th\u00ea\u0309 th\u00e2\u0301y, co\u0300n m\u00f4\u0323t b\u00f4\u0323 ph\u00e2\u0323n l\u01a1\u0301n \u0111a\u0303 th\u01b0\u0300a co\u0300n la\u0323i \u0111\u00ea\u0300u ti\u00eau hao v\u01a1\u0301i hi\u0300nh th\u01b0\u0301c nhi\u00ea\u0323t n\u0103ng, nh\u01b0\u0303ng tia b\u01b0\u0301c xa\u0323 nhi\u00ea\u0323t \u0111o\u0301 h\u00e2\u0300u h\u00ea\u0301t \u0111\u00ea\u0300u co\u0301 ha\u0323i cho m\u0103\u0301t cu\u0309a chu\u0301ng ta.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Loa\u0323i th\u01b0\u0301 hai la\u0300 \u0111e\u0300n nh\u00e2\u0323t quang. \u0110e\u0300n nh\u00e2\u0323t quang \u0111\u01b0\u01a1\u0323c ch\u00ea\u0301 ta\u0323o ra t\u01b0\u0300 vi\u00ea\u0323c nghi\u00ean c\u01b0\u0301u loa\u0300i \u0111om \u0111o\u0301m cu\u0309a ca\u0301c nha\u0300 khoa ho\u0323c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110om \u0111o\u0301m la\u0300 m\u00f4\u0323t loa\u0300i \u0111\u00f4\u0323ng v\u00e2\u0323t co\u0301 th\u00ea\u0309 pha\u0301t ra a\u0301nh sa\u0301ng. Chu\u0301ng ta th\u01b0\u01a1\u0300ng g\u0103\u0323p chu\u0301ng trong c\u00e2y co\u0309 va\u0300o mu\u0300a he\u0300. Ca\u0301c nha\u0300 khoa ho\u0323c nghi\u00ean c\u01b0\u0301u va\u0300 pha\u0301t hi\u00ea\u0323n ra, n\u01a1i pha\u0301t sa\u0301ng cu\u0309a \u0111om \u0111o\u0301m n\u0103\u0300m \u01a1\u0309 ph\u00e2\u0300n bu\u0323ng. B\u00f4\u0323 ph\u00e2\u0323n pha\u0301t sa\u0301ng na\u0300y \u0111\u01b0\u01a1\u0323c h\u01a1\u0323p tha\u0300nh t\u01b0\u0300 t\u00e2\u0300ng pha\u0301t sa\u0301ng, t\u00e2\u0300ng trong su\u00f4\u0301t va\u0300 t\u00e2\u0300ng pha\u0309n xa\u0323. T\u00e2\u0300ng pha\u0301t sa\u0301ng bao g\u00f4\u0300m hai loa\u0323i v\u00e2\u0323t ch\u00e2\u0301t la\u0300 ch\u00e2\u0301t huy\u0300nh quang va\u0300 dung m\u00f4i huy\u0300nh quang. D\u01b0\u01a1\u0301i ta\u0301c du\u0323ng cu\u0309a dung m\u00f4i huy\u0300nh quang, ch\u00e2\u0301t huy\u0300nh quang pha\u0309n \u01b0\u0301ng v\u01a1\u0301i \u00f4-xi va\u0300 pha\u0301t ra huy\u0300nh quang, no\u0301 chuy\u00ea\u0309n hoa\u0301 100% n\u0103ng l\u01b0\u01a1\u0323ng hoa\u0301 ho\u0323c tha\u0300nh n\u0103ng l\u01b0\u01a1\u0323ng a\u0301nh sa\u0301ng, kh\u00f4ng sinh ra nhi\u00ea\u0323t l\u01b0\u01a1\u0323ng, do \u0111o\u0301 go\u0323i la\u0300 ngu\u00f4\u0300n sa\u0301ng la\u0323nh. Loa\u0323i a\u0301nh sa\u0301ng la\u0323nh na\u0300y co\u0301 hi\u00ea\u0323u su\u00e2\u0301t pha\u0301t sa\u0301ng cao, i\u0301t ti\u00eau hao n\u0103ng l\u01b0\u01a1\u0323ng, a\u0301nh sa\u0301ng th\u01b0\u01a1\u0300ng r\u00e2\u0301t \u00eam di\u0323u, thi\u0301ch h\u01a1\u0323p v\u01a1\u0301i m\u0103\u0301t ng\u01b0\u01a1\u0300i. \u0110e\u0300n nh\u00e2\u0323t quang \u0111\u01b0\u01a1\u0323c ch\u00ea\u0301 ta\u0323o t\u01b0\u0300 ch\u00e2\u0301t huy\u0300nh quang va\u0300 dung m\u00f4i huy\u0300nh quang l\u00e2\u0301y ra t\u01b0\u0300 b\u00f4\u0323 ph\u00e2\u0323n pha\u0301t sa\u0301ng cu\u0309a \u0111om \u0111o\u0301m va\u0300 t\u01b0\u0300 ca\u0301c v\u00e2\u0323t ch\u00e2\u0301t hoa\u0301 ho\u0323c kha\u0301c. Pha\u0301t ki\u00ea\u0301n na\u0300y \u0111a\u0303 ti\u00ea\u0301t ki\u00ea\u0323m m\u00f4\u0323t l\u01b0\u01a1\u0323ng l\u01a1\u0301n \u0111i\u00ea\u0323n n\u0103ng cho nh\u00e2n loa\u0323i.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trong c\u0103n nha\u0300 cu\u0309a chu\u0301ng ta co\u0301 m\u0103\u0301c r\u00e2\u0301t nhie\u0300u bo\u0301ng \u0111e\u0300n \u0111i\u00ea\u0323n, th\u01b0\u01a1\u0300ng thi\u0300 bu\u00f4\u0309i t\u00f4\u0301i chu\u0301ng ta b\u00e2\u0323t \u0111e\u0300n l\u00ean cho c\u0103n pho\u0300ng sa\u0301ng su\u0309a, va\u0300 mo\u0323i ng\u01b0\u01a1\u0300i th\u01b0\u01a1\u0300ng i\u0301t chu\u0301 y\u0301 \u0111\u00ea\u0301n chu\u0301ng. Nh\u01b0ng chi\u0309 c\u00e2\u0300n quan sa\u0301t ki\u0303 m\u00f4\u0323t chu\u0301t thi\u0300 ba\u0323n co\u0301 th\u00ea\u0309 th\u00e2\u0301y trong s\u00f4\u0301 ca\u0301c bo\u0301ng \u0111i\u00ea\u0323n \u0111o\u0301 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[1,15],"tags":[],"class_list":["post-11317","post","type-post","status-publish","format-standard","hentry","category-general","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/11317","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=11317"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/11317\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=11317"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=11317"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=11317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}