B\u00e0i 1 (trang 132 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0K\u1ebft lu\u1eadn quan tr\u1ecdng nh\u1ea5t r\u00fat ra t\u1eeb th\u00ed nghi\u1ec7m Y \u2013 \u00e2ng l\u00e0 g\u00ec?<\/span><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
K\u1ebft lu\u1eadn quan tr\u1ecdng nh\u1ea5t r\u00fat ra t\u1eeb th\u00ed nghi\u1ec7m Y \u2013 \u00e2ng l\u00e0 \u00e1nh s\u00e1ng c\u00f3 t\u00ednh ch\u1ea5t s\u00f3ng.<\/p>\n
B\u00e0i 2 (trang 132 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Vi\u1ebft c\u00f4ng th\u1ee9c x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed c\u00e1c v\u00e2n s\u00e1ng?<\/span><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
C\u00f4ng th\u1ee9c x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed c\u00e1c v\u00e2n s\u00e1ng:<\/p>\n
![\"\"](\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/03\/1-579.png\")
<\/p>\n
B\u00e0i 3 (trang 132 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Vi\u1ebft c\u00f4ng th\u1ee9c t\u00ednh kho\u1ea3ng v\u00e2n.<\/span><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
C\u00f4ng th\u1ee9c t\u00ednh kho\u1ea3ng v\u00e2n:<\/p>\n
![\"\"](\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/03\/1-580.png\")
<\/p>\n
B\u00e0i 4 (trang 132 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0\u00c1nh s\u00e1ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c c\u00f3 b\u01b0\u1edbc s\u00f3ng n\u1eb1m trong kho\u1ea3ng n\u00e0o?<\/span><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
\u00c1nh s\u00e1ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c c\u00f3 b\u01b0\u1edbc s\u00f3ng n\u1eb1m trong kho\u1ea3ng t\u1eeb 380nm \u0111\u1ebfn 760nm.<\/p>\n
\n
\n
B\u00e0i 5 (trang 132 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0N\u00eau nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a \u00e1nh s\u00e1ng \u0111\u01a1n s\u1eafc.<\/span><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
Nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a \u00e1nh s\u00e1ng \u0111\u01a1n s\u1eafc.<\/p>\n
M\u1ed7i s\u1eed d\u1ee5ng \u0111\u01a1n s\u1eafc c\u00f3 m\u1ed9t b\u01b0\u1edbc s\u00f3ng trong ch\u00e2n kh\u00f4ng x\u00e1c \u0111\u1ecbnh.<\/p>\n
M\u1ed7i \u00e1nh s\u00e1ng \u0111\u01a1n s\u1eafc c\u00f3 m\u1ed9t m\u00e0u x\u00e1c \u0111\u1ecbnh, g\u1ecdi l\u00e0 m\u00e0u \u0111\u01a1n s\u1eafc.<\/p>\n
\n
\n
B\u00e0i 6 (trang 132 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Ch\u1ec9 ra c\u00f4ng th\u1ee9c \u0111\u00fang \u0111\u1ec3 t\u00ednh kho\u1ea3ng v\u00e2n.<\/span><\/p>\n![\"\"](\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/03\/1-581.png\")
\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
Ch\u1ecdn \u0111\u00e1p \u00e1n A.<\/p>\n
B\u00e0i 7 (trang 133 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Ch\u1ecdn c\u00e2u \u0111\u00fang.<\/span><\/p>\nB\u1ee9c x\u1ea1 m\u00e0u v\u00e0ng c\u1ee7a natri c\u00f3 b\u01b0\u1edbc s\u00f3ng \u03bb b\u1eb1ng:<\/p>\n
A. 0,589 mm<\/p>\n
B. 0.589nm<\/p>\n
C. 0,589\u03bcm<\/p>\n
D. 0,589pm<\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
Ch\u1ecdn \u0111\u00e1p \u00e1n C.<\/p>\n
B\u00e0i 8 (trang 133 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Trong m\u1ed9t th\u00ed nghi\u1ec7m Y \u2013 \u00e2ng v\u1edbi a= 2mm, D = 1,2 m, ng\u01b0\u1eddi ta \u0111o \u0111\u01b0\u1ee3c i = 0,36 mm. T\u00ednh b\u01b0\u1edbc s\u00f3ng \u03bb v\u00e0 t\u1ea7n s\u1ed1 f c\u1ee7a b\u1ee9c x\u1ea1.<\/span><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
![\"\"](\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/03\/1-582.png\")
<\/p>\n
B\u00e0i 9 (trang 133 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0M\u1ed9t khe h\u1eb9p F ph\u00e1t \u00e1nh s\u00e1ng \u0111\u01a1n s\u1eafc, b\u01b0\u1edbc s\u00f3ng \u03bb = 600mm chi\u1ebfu s\u00e1ng hai khe F1<\/sub>, F2<\/sub>\u00a0song song v\u1edbi F v\u00e0 c\u00e1ch nhau 1,2mm. V\u00e2n giao thoa \u0111\u01b0\u1ee3c quan s\u00e1t tr\u00ean m\u1ed9t m\u00e0n M song song v\u1edbi m\u1eb7t ph\u1eb3ng ch\u1ee9a F1<\/sub>, F2<\/sub>\u00a0v\u00e0 c\u00e1ch n\u00f3 0,5m.<\/span><\/p>\na) T\u00ednh kho\u1ea3ng v\u00e2n.<\/p>\n
b) X\u00e1c \u0111\u1ecbnh kho\u1ea3ng c\u00e1ch t\u1eeb v\u00e2n s\u00e1ng ch\u00ednh gi\u1eefa \u0111\u1ebfn v\u00e2n s\u00e1ng b\u1eadc 4.<\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
a) Kho\u1ea3ng c\u00e1ch gi\u1eefa hai v\u00e2n s\u00e1ng li\u00ean ti\u1ebfp (\u0111\u00e2y ch\u00ednh l\u00e0 kho\u1ea3ng v\u00e2n):<\/p>\n
![\"\"](\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/03\/1-583.png\")
<\/p>\n
b) Kho\u1ea3ng c\u00e1ch t\u1eeb v\u00e2n s\u00e1ng ch\u00ednh gi\u1eefa \u0111\u1ebfn v\u00e2n s\u00e1ng b\u1eadc 4 l\u00e0:<\/p>\n
x4<\/sub>\u00a0= 4.i = 4.0,25 = 1 (mm)<\/p>\nB\u00e0i 10 (trang 133 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Trong m\u1ed9t th\u00ed nghi\u1ec7m Y- \u00e2ng, kho\u1ea3ng c\u00e1ch gi\u1eefa hai khe F1<\/sub>, F2<\/sub>\u00a0l\u00e0 a = 1,56mm, kho\u1ea3ng c\u00e1ch t\u1eeb F1<\/sub>, F2<\/sub>\u00a0\u0111\u1ebfn m\u00e0n quan s\u00e1t l\u00e0 D = 1,24m. Kho\u1ea3ng c\u00e1ch gi\u1eefa 12 v\u00e2n s\u00e1ng li\u00ean ti\u1ebfp l\u00e0 5,21mm. T\u00ednh b\u01b0\u1edbc s\u00f3ng \u00e1nh s\u00e1ng.<\/span><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
Kho\u1ea3ng c\u00e1ch gi\u1eefa 12 v\u00e2n s\u00e1ng li\u00ean ti\u1ebfp l\u00e0 : 11i = 5,21<\/p>\n
![\"\"](\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/03\/1-584.png\")
<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
B\u00e0i 1 (trang 132 SGK V\u1eadt L\u00fd 12):\u00a0K\u1ebft lu\u1eadn quan tr\u1ecdng nh\u1ea5t r\u00fat ra t\u1eeb th\u00ed nghi\u1ec7m Y \u2013 \u00e2ng l\u00e0 g\u00ec? L\u1eddi gi\u1ea3i: K\u1ebft lu\u1eadn quan tr\u1ecdng nh\u1ea5t r\u00fat ra t\u1eeb th\u00ed nghi\u1ec7m Y \u2013 \u00e2ng l\u00e0 \u00e1nh s\u00e1ng c\u00f3 t\u00ednh ch\u1ea5t s\u00f3ng. B\u00e0i 2 (trang 132 SGK V\u1eadt L\u00fd 12):\u00a0Vi\u1ebft c\u00f4ng th\u1ee9c x\u00e1c […]<\/p>\n","protected":false},"author":3,"featured_media":24737,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1303],"tags":[1428,1427],"yoast_head":"\n
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