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{"id":25856,"date":"2018-04-09T17:06:00","date_gmt":"2018-04-09T10:06:00","guid":{"rendered":"https:\/\/lop12.edu.vn\/?p=25856"},"modified":"2018-04-09T17:06:00","modified_gmt":"2018-04-09T10:06:00","slug":"bai-tap-trac-nghiem-vat-li-12-tan-sac-anh-sang-phan-2","status":"publish","type":"post","link":"https:\/\/lop12.edu.vn\/bai-tap-trac-nghiem-vat-li-12-tan-sac-anh-sang-phan-2\/","title":{"rendered":"B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m V\u1eadt L\u00ed 12: T\u00e1n s\u1eafc \u00e1nh s\u00e1ng (ph\u1ea7n 2)"},"content":{"rendered":"

C\u00e2u 8:<\/b>\u00a0Chi\u1ebfu m\u1ed9t ch\u00f9m s\u00e1ng tr\u1eafng h\u1eb9p \u0111i t\u1eeb kh\u00f4ng kh\u00ed \u0111\u1ebfn \u0111\u1ec3 g\u1eb7p m\u1eb7t t\u1ea5m th\u1ee7y tinh theo ph\u01b0\u01a1ng h\u1ee3p v\u1edbi m\u1eb7t n\u00e0y m\u1ed9t g\u00f3c 30\u00b0. Th\u1ee7y tinh c\u00f3 chi\u1ebft su\u1ea5t \u0111\u1ed1i \u00e1nh s\u00e1ng \u0111\u1ecf v\u00e0 \u00e1nh s\u00e1ng t\u00edm l\u1ea7n l\u01b0\u1ee3t l\u00e0 n\u0111<\/sub>=1,49 v\u00e0 nt<\/sub>=1,53. G\u00f3c h\u1ee3p b\u1edfi tia kh\u00fac x\u1ea1 m\u00e0u \u0111\u1ecf v\u00e0 tia kh\u00fac x\u1ea1 m\u00e0u t\u00edm g\u1ea7n nh\u1ea5t v\u1edbi gi\u00e1 tr\u1ecb n\u00e0o d\u01b0\u1edbi \u0111\u00e2y?<\/p>\n

A. 2,5\u00b0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B. 0,6\u00b0<\/p>\n

C. 1,1\u00b0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D. 1,3\u00b0<\/p>\n

C\u00e2u 9:<\/b>\u00a0M\u1ed9t l\u0103ng k\u00ednh c\u00f3 g\u00f3c chi\u1ebft quang A=5\u00b0. Bi\u1ebft chi\u1ebft su\u1ea5t c\u1ee7a l\u0103ng k\u00ednh \u0111\u1ed1i v\u1edbi tia t\u00edm l\u00e0 1,58 v\u00e0 g\u00f3c t\u1edbi i nh\u1ecf. G\u00f3c l\u1ec7ch c\u1ee7a tia tiksm khi qua l\u0103ng kinh l\u00e0<\/p>\n

A. 7,9\u00b0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B. 0,79 rad<\/p>\n

C. 2,9\u00b0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D.0,029 rad<\/p>\n

C\u00e2u 10:<\/b>\u00a0M\u1ed9t l\u0103ng k\u00ednh th\u1ee7y tinh c\u00f3 g\u00f3c chi\u1ebft quang A=60\u00b0. Chi\u1ebfu tia s\u00e1ng tr\u1eafng SI v\u00e0o m\u0103t b\u00ean c\u1ee7a l\u0103ng k\u00ednh sao cho tia t\u1edbi n\u1eb1m ph\u00eda d\u01b0\u1edbi ph\u00e1p tuy\u1ebfn t\u1ea1i I. Chi\u1ebft su\u1ea5t c\u1ee7a m\u00f4i tr\u01b0\u1eddng l\u00e0 l\u0103ng k\u00ednh \u0111\u1ed1i v\u1edbi \u00e1nh s\u00e1ng l\u00e0 n=\u221a3. \u0110\u1ec3 cho tia t\u00edm c\u00f3 g\u00f3c l\u1ec7ch c\u1ef1c ti\u1ec3u th\u00ec g\u00f3c t\u1edbi ph\u1ea3i b\u1eb1ng<\/p>\n

A. 30\u00b0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B. 45\u00b0<\/p>\n

C. 60\u00b0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D. 55\u00b0<\/p>\n

C\u00e2u 11:<\/b>\u00a0M\u1ed9t tia s\u00e1ng tr\u1eafng chi\u1ebfu vu\u00f4ng g\u00f3c v\u1edbi m\u1eb7t b\u00ean c\u1ee7a m\u1ed9t l\u0103ng k\u00ednh c\u00f3 g\u00f3c chi\u1ebft quang A=5\u00b0. Chi\u1ebft su\u1ea5t c\u1ee7a l\u0103ng k\u00ednh \u0111\u1ed1i v\u1edbi c\u00e1c \u00e1nh s\u00e1ng m\u00e0u \u0111\u1ecf v\u00e0 t\u00edm l\u1ea7n l\u01b0\u1ee3t l\u00e0 n\u0111<\/sub>=1,64 ; nt<\/sub>=1,68. Sau l\u0103ng k\u00ednh \u0111\u1eb7t m\u1ed9t m\u00e0n \u1ea3nh M song song v\u1edbi m\u1eb7t b\u00ean th\u1ee9 nh\u1ea5t c\u1ee7a l\u0103ng k\u00ednh v\u00e0 c\u00e1ch n\u00f3 L = 1,2 m (xem H\u00ecnh v\u1ebd)<\/p>\n

\"\"<\/p>\n

Chi\u1ec1u d\u00e0i c\u1ee7a quang ph\u1ed5 thu \u0111\u01b0\u1ee3c tr\u00ean m\u00e0n l\u00e0<\/p>\n

A. 2,4 mm \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B. 1,2 cm<\/p>\n

C. 4,2 mm \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D. 21,1 mm<\/p>\n

C\u00e2u 12:<\/b>\u00a0M\u1ed9t th\u1ea5u k\u00ednh m\u1ecfng b\u1eb1ng th\u1ee7y tinh c\u00f3 hai m\u1eb7t c\u1ea7u l\u1ed3i \u0111\u1eb7t trong kh\u00f4ng kh\u00ed. M\u1ed9t ch\u00f9m tia s\u00e1ng h\u1eb9p, song song g\u1ea7n tr\u1ee5c ch\u00ednh g\u1ed3m t\u1eadp h\u1ee3p c\u00e1c \u00e1nh s\u00e1ng \u0111\u01a1n s\u1eafc \u0111\u1ecf, lam, t\u00edm, v\u00e0ng \u0111\u01b0\u1ee3c chi\u1ebfu t\u1edbi th\u1ea5u k\u00ednh theo ph\u01b0\u01a1ng song song v\u1edbi tr\u1ee5c ch\u00ednh c\u1ee7a th\u1ea5u k\u00ednh. \u0110i\u1ec3m h\u1ed9i t\u1ee5 c\u1ee7a c\u00e1c ch\u00f9m tia s\u00e1ng m\u00e0u t\u00ednh t\u1eeb quang t\u00e2m O ra xa theo t\u1ee9 t\u1ef1<\/p>\n

A. \u0111\u1ecf, v\u00e0ng, lam, t\u00edm \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B. t\u00edm, lam, v\u00e0ng , \u0111\u1ecf<\/p>\n

C. \u0111\u1ecf, lam, v\u00e0ng, t\u00edm \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D. t\u00edm, v\u00e0ng, lam, \u0111\u1ecf<\/p>\n

C\u00e2u 13:<\/b>\u00a0M\u1ed9t th\u1ea5u k\u00ednh hai m\u1eb7t c\u1ea7u l\u1ed3i \u0111\u1ec1u c\u00f3 b\u00e1n k\u00ednh R = 22,5 cm. Bi\u1ebft chi\u1ebft su\u1ea5t c\u1ee7a th\u1ea5u k\u00ednh \u0111\u1ed1i v\u1edbi \u00e1nh s\u00e1ng t\u00edm, dodr l\u1ea7n l\u01b0\u1ee3t l\u00e0 1,50 v\u00e0 1,45. Kho\u1ea3ng c\u00e1ch t\u1eeb ti\u00eau \u0111i\u1ec3m ch\u00ednh \u0111\u1ed1i v\u1edbi tia \u0111\u1ecf \u0111\u1ebfn ti\u00eau \u0111i\u1ec3m ch\u00ednh \u0111\u1ed1i v\u1edbi tia t\u00edm l\u00e0<\/p>\n

A. 1,25 cm \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B. 2,5 cm<\/p>\n

C. 2,25 cm \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D. 1,125 cm<\/p>\n

C\u00e2u 14:<\/b>\u00a0M\u1ed9t th\u1ea5u k\u00ednh m\u1ecfng g\u1ed3m m\u1ed9t m\u1eb7t ph\u1eb3ng, m\u1ed9t m\u1eb7t l\u1ed3i, b\u00e1n k\u00ednh 20 cm, l\u00e0m b\u1eb1ng ch\u1ea5t c\u00f3 chi\u1ebft su\u1ea5t \u0111\u1ed1i v\u1edbi \u00e1nh s\u00e1ng \u0111\u1ecf l\u00e0 1,49, \u0111\u1ed1i v\u1edbi \u00e1nh s\u00e1ng t\u00edm l\u00e0 1,51. Hi\u1ec7u s\u1ed1 \u0111\u1ed9 t\u1ee5 c\u1ee7a th\u00e2u k\u00ednh \u0111\u1ed1i v\u1edbi tia \u0111\u1ecf, tia t\u00edm l\u00e0<\/p>\n

A. 1 dp \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B. 0,1 dp<\/p>\n

C. 0,2 dp \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D. 0,02 dp<\/p>\n

H\u01b0\u1edbng d\u1eabn gi\u1ea3i v\u00e0 \u0111\u00e1p \u00e1n<\/b><\/p>\n\n\n\n\n
C\u00e2u<\/td>\n8<\/td>\n9<\/td>\n10<\/td>\n11<\/td>\n12<\/td>\n13<\/td>\n14<\/td>\n<\/tr>\n
\u0110\u00e1p \u00e1n<\/td>\nC<\/td>\nC<\/td>\nC<\/td>\nC<\/td>\nB<\/td>\nB<\/td>\nB<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u00e2u 8:<\/b>\u00a0C<\/p>\n

G\u00f3c t\u1edbi i=60\u00b0. \u00c1p d\u1ee5ng \u0111\u1ecbnh lu\u1eadt kh\u00fac x\u1ea1, ta c\u00f3 r\u0111<\/sub>\u224835,54\u00b0 ; rt<\/sub>\u224834,47\u00b0<\/p>\n

i\u0111<\/sub>-it<\/sub>\u22481,07\u00b0.<\/p>\n

C\u00e2u 11:<\/b>\u00a0C<\/p>\n

\"\"<\/p>\n

C\u00e2u 13:<\/b>\u00a0B<\/p>\n

\"\"<\/p>\n

C\u00e2u 14:<\/b>\u00a0B<\/p>\n

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

C\u00e2u 8:\u00a0Chi\u1ebfu m\u1ed9t ch\u00f9m s\u00e1ng tr\u1eafng h\u1eb9p \u0111i t\u1eeb kh\u00f4ng kh\u00ed \u0111\u1ebfn \u0111\u1ec3 g\u1eb7p m\u1eb7t t\u1ea5m th\u1ee7y tinh theo ph\u01b0\u01a1ng h\u1ee3p v\u1edbi m\u1eb7t n\u00e0y m\u1ed9t g\u00f3c 30\u00b0. Th\u1ee7y tinh c\u00f3 chi\u1ebft su\u1ea5t \u0111\u1ed1i \u00e1nh s\u00e1ng \u0111\u1ecf v\u00e0 \u00e1nh s\u00e1ng t\u00edm l\u1ea7n l\u01b0\u1ee3t l\u00e0 n\u0111=1,49 v\u00e0 nt=1,53. G\u00f3c h\u1ee3p b\u1edfi tia kh\u00fac x\u1ea1 m\u00e0u \u0111\u1ecf v\u00e0 […]<\/p>\n","protected":false},"author":3,"featured_media":25857,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[158],"tags":[1443,1442],"yoast_head":"\nB\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m V\u1eadt L\u00ed 12: T\u00e1n s\u1eafc \u00e1nh s\u00e1ng (ph\u1ea7n 2)<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lop12.edu.vn\/bai-tap-trac-nghiem-vat-li-12-tan-sac-anh-sang-phan-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m V\u1eadt L\u00ed 12: T\u00e1n s\u1eafc \u00e1nh s\u00e1ng (ph\u1ea7n 2)\" \/>\n<meta property=\"og:description\" content=\"C\u00e2u 8:\u00a0Chi\u1ebfu m\u1ed9t ch\u00f9m s\u00e1ng tr\u1eafng h\u1eb9p \u0111i t\u1eeb kh\u00f4ng kh\u00ed \u0111\u1ebfn \u0111\u1ec3 g\u1eb7p m\u1eb7t t\u1ea5m th\u1ee7y tinh theo ph\u01b0\u01a1ng h\u1ee3p v\u1edbi m\u1eb7t n\u00e0y m\u1ed9t g\u00f3c 30\u00b0. Th\u1ee7y tinh c\u00f3 chi\u1ebft su\u1ea5t \u0111\u1ed1i \u00e1nh s\u00e1ng \u0111\u1ecf v\u00e0 \u00e1nh s\u00e1ng t\u00edm l\u1ea7n l\u01b0\u1ee3t l\u00e0 n\u0111=1,49 v\u00e0 nt=1,53. G\u00f3c h\u1ee3p b\u1edfi tia kh\u00fac x\u1ea1 m\u00e0u \u0111\u1ecf v\u00e0 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lop12.edu.vn\/bai-tap-trac-nghiem-vat-li-12-tan-sac-anh-sang-phan-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12 l\u1edbn nh\u1ea5t t\u1ea1i Vi\u1ec7t Nam\" \/>\n<meta property=\"article:published_time\" content=\"2018-04-09T10:06:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/04\/1-131.png\" \/>\n\t<meta property=\"og:image:width\" content=\"496\" \/>\n\t<meta property=\"og:image:height\" content=\"349\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"H\u00e0 Trang\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"H\u00e0 Trang\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/lop12.edu.vn\/bai-tap-trac-nghiem-vat-li-12-tan-sac-anh-sang-phan-2\/\",\"url\":\"https:\/\/lop12.edu.vn\/bai-tap-trac-nghiem-vat-li-12-tan-sac-anh-sang-phan-2\/\",\"name\":\"B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m V\u1eadt L\u00ed 12: T\u00e1n s\u1eafc \u00e1nh s\u00e1ng (ph\u1ea7n 2)\",\"isPartOf\":{\"@id\":\"https:\/\/lop12.edu.vn\/#website\"},\"datePublished\":\"2018-04-09T10:06:00+00:00\",\"dateModified\":\"2018-04-09T10:06:00+00:00\",\"author\":{\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/2da855e5d06b553ac0065157cc261a45\"},\"breadcrumb\":{\"@id\":\"https:\/\/lop12.edu.vn\/bai-tap-trac-nghiem-vat-li-12-tan-sac-anh-sang-phan-2\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/lop12.edu.vn\/bai-tap-trac-nghiem-vat-li-12-tan-sac-anh-sang-phan-2\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/lop12.edu.vn\/bai-tap-trac-nghiem-vat-li-12-tan-sac-anh-sang-phan-2\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/lop12.edu.vn\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m V\u1eadt L\u00ed 12: T\u00e1n s\u1eafc \u00e1nh s\u00e1ng (ph\u1ea7n 2)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/lop12.edu.vn\/#website\",\"url\":\"https:\/\/lop12.edu.vn\/\",\"name\":\"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/lop12.edu.vn\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/2da855e5d06b553ac0065157cc261a45\",\"name\":\"H\u00e0 Trang\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/545a8100db1147f314111301d261dc33?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/545a8100db1147f314111301d261dc33?s=96&d=mm&r=g\",\"caption\":\"H\u00e0 Trang\"},\"url\":\"https:\/\/lop12.edu.vn\/author\/trangvth2\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m V\u1eadt L\u00ed 12: T\u00e1n s\u1eafc \u00e1nh s\u00e1ng (ph\u1ea7n 2)","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/lop12.edu.vn\/bai-tap-trac-nghiem-vat-li-12-tan-sac-anh-sang-phan-2\/","og_locale":"en_US","og_type":"article","og_title":"B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m V\u1eadt L\u00ed 12: T\u00e1n s\u1eafc \u00e1nh s\u00e1ng (ph\u1ea7n 2)","og_description":"C\u00e2u 8:\u00a0Chi\u1ebfu m\u1ed9t ch\u00f9m s\u00e1ng tr\u1eafng h\u1eb9p \u0111i t\u1eeb kh\u00f4ng kh\u00ed \u0111\u1ebfn \u0111\u1ec3 g\u1eb7p m\u1eb7t t\u1ea5m th\u1ee7y tinh theo ph\u01b0\u01a1ng h\u1ee3p v\u1edbi m\u1eb7t n\u00e0y m\u1ed9t g\u00f3c 30\u00b0. Th\u1ee7y tinh c\u00f3 chi\u1ebft su\u1ea5t \u0111\u1ed1i \u00e1nh s\u00e1ng \u0111\u1ecf v\u00e0 \u00e1nh s\u00e1ng t\u00edm l\u1ea7n l\u01b0\u1ee3t l\u00e0 n\u0111=1,49 v\u00e0 nt=1,53. 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