Ch\u01b0\u01a1ng 2 - B\u00e0i 7: S\u00f3ng c\u01a1 v\u00e0 s\u1ef1 truy\u1ec1n s\u00f3ng c\u01a1<\/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\/chuong-2-bai-7-song-co-va-su-truyen-song-co\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ch\u01b0\u01a1ng 2 - B\u00e0i 7: S\u00f3ng c\u01a1 v\u00e0 s\u1ef1 truy\u1ec1n s\u00f3ng c\u01a1\" \/>\n<meta property=\"og:description\" content=\"B\u00e0i 1 (trang 40 SGK V\u1eadt L\u00fd 12):\u00a0S\u00f3ng c\u01a1 l\u00e0 g\u00ec? L\u1eddi gi\u1ea3i: S\u00f3ng c\u01a1 l\u00e0 dao \u0111\u1ed9ng c\u01a1 lan truy\u1ec1n trong m\u1ed9t m\u00f4i tr\u01b0\u1eddng. B\u00e0i 2 (trang 40 SGK V\u1eadt L\u00fd 12):\u00a0Th\u1ebf n\u00e0o l\u00e0 s\u00f3ng ngang? Th\u1ebf n\u00e0o l\u00e0 s\u00f3ng d\u1ecdc ? 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B\u00e0i 1 (trang 40 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0S\u00f3ng c\u01a1 l\u00e0 g\u00ec?<\/span><\/p>\n

S\u00f3ng c\u01a1 l\u00e0 dao \u0111\u1ed9ng c\u01a1 lan truy\u1ec1n trong m\u1ed9t m\u00f4i tr\u01b0\u1eddng.<\/p>\n

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B\u00e0i 2 (trang 40 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Th\u1ebf n\u00e0o l\u00e0 s\u00f3ng ngang? Th\u1ebf n\u00e0o l\u00e0 s\u00f3ng d\u1ecdc ?<\/span><\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
S\u00f3ng ngang l\u00e0 song trong \u0111\u00f3 c\u00e1c ph\u1ea7n t\u1eed c\u1ee7a m\u00f4i tr\u01b0\u1eddng dao \u0111\u1ed9ng theo ph\u01b0\u01a1ng vu\u00f4ng g\u00f3c v\u1edbi ph\u01b0\u01a1ng truy\u1ec1n song.<\/p>\n
S\u00f3ng d\u1ecdc l\u00e0 s\u00f3ng trong \u0111\u00f3 c\u00e1c ph\u1ea7n t\u1eed c\u1ee7a m\u00f4i tr\u01b0\u1eddng dao \u0111\u1ed9ng theo ph\u01b0\u01a1ng tr\u00f9ng v\u1edbi ph\u01b0\u01a1ng truy\u1ec1n s\u00f3ng.<\/p>\n
B\u00e0i 3 (trang 40 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0B\u01b0\u1edbc s\u00f3ng l\u00e0 g\u00ec ?<\/span><\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
B\u01b0\u1edbc s\u00f3ng l\u00e0 qu\u00e3ng \u0111\u01b0\u1eddng m\u00e0 s\u00f3ng truy\u1ec1n \u0111\u01b0\u1ee3c trong th\u1eddi gian m\u1ed9t chu k\u00ec.<\/p>\n
$\"\"$ <\/div>\n
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B\u00e0i 4 (trang 40 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Vi\u1ebft ph\u01b0\u01a1ng tr\u00ecnh s\u00f3ng.<\/span><\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
Ph\u01b0\u01a1ng tr\u00ecnh s\u00f3ng c\u1ee7a m\u1ed9t s\u00f3ng h\u00ecnh sin truy\u1ec1n theo tr\u1ee5c x.<\/p>\n
$\"\"$ <\/div>\n
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B\u00e0i 5 (trang 40 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0T\u1ea1i sao ta n\u00f3i s\u00f3ng v\u1eeba c\u00f3 t\u00ednh tu\u1ea7n ho\u00e0n theo th\u1eddi gian, v\u1eeba c\u00f3 t\u00ednh tu\u1ea7n ho\u00e0n trong kh\u00f4ng gian ?<\/span><\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
V\u00ec ph\u01b0\u01a1ng tr\u00ecnh c\u00f3 d\u1ea1ng<\/p>\n
$\"\"$ <\/p>\n
ph\u1ee5 thu\u1ed9c v\u00e0o t v\u00e0 x, n\u00ean s\u00f3ng v\u1eeba c\u00f3 t\u00ednh tu\u1ea7n ho\u00e0n theo th\u1eddi gian t v\u1eeba c\u00f3 t\u00ednh tu\u1ea7n ho\u00e0n theo kh\u00f4ng gian x.<\/p>\n
B\u00e0i 6 (trang 40 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0S\u00f3ng c\u01a1 l\u00e0 g\u00ec ?<\/span><\/p>\n
A. L\u00e0 dao \u0111\u1ed9ng lan truy\u1ec1n trong m\u1ed9t m\u00f4i tr\u01b0\u1eddng.<\/p>\n
B. L\u00e0 dao \u0111\u1ed9ng c\u1ee7a m\u1ecdi \u0111i\u1ec3m trong m\u1ed9t m\u00f4i tr\u01b0\u1eddng.<\/p>\n
C. L\u00e0 m\u1ed9t d\u1ea1ng chuy\u1ec3n \u0111\u1ed9ng \u0111\u1eb7c bi\u1ec7t c\u1ee7a m\u00f4i tr\u01b0\u1eddng.<\/p>\n
D. L\u00e0 s\u1ef1 truy\u1ec1n chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c ph\u1ea7n t\u1eed trong m\u1ed9t m\u00f4i tr\u01b0\u1eddng.<\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
Ch\u1ecdn \u0111\u00e1p \u00e1n A<\/p>\n
B\u00e0i 7 (trang 40 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Ch\u1ecdn c\u00e2u \u0111\u00fang<\/span>.<\/p>\n
A. S\u00f3ng d\u1ecdc l\u00e0 s\u00f3ng truy\u1ec1n d\u1ecdc theo m\u1ed9t s\u1ee3i d\u00e2y.<\/p>\n
B. S\u00f3ng d\u1ecdc l\u00e0 s\u00f3ng truy\u1ec1n theo ph\u01b0\u01a1ng th\u1eb3ng \u0111\u1ee9ng, c\u00f2n s\u00f3ng ngang l\u00e0 s\u00f3ng truy\u1ec1n theo ph\u01b0\u01a1ng n\u1eb1m ngang.<\/p>\n
C. S\u00f3ng d\u1ecdc l\u00e0 s\u00f3ng trong \u0111\u00f3 ph\u01b0\u01a1ng dao \u0111\u1ed9ng (c\u1ee7a c\u00e1c ph\u1ea7n t\u1eed c\u1ee7a m\u00f4i tr\u01b0\u1eddng) tr\u00f9ng v\u1edbi ph\u01b0\u01a1ng truy\u1ec1n.<\/p>\n
D. S\u00f3ng d\u1ecdc l\u00e0 s\u00f3ng truy\u1ec1n theo tr\u1ee5c tung, c\u00f2n s\u00f3ng ngang l\u00e0 s\u00f3ng truy\u1ec1n theo tr\u1ee5c ho\u00e0nh.<\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
Ch\u1ecdn \u0111\u00e1p \u00e1n C.<\/p>\n
B\u00e0i 8 (trang 40 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Trong th\u00ed nghi\u1ec7m \u1edf h\u00ecnh 7.1, c\u1ea7n rung dao \u0111\u1ed9ng v\u1edbi t\u1ea7n s\u1ed1 50 Hz. \u1ede m\u1ed9t th\u1eddi \u0111i\u1ec3m t, ng\u01b0\u1eddi ta \u0111o \u0111\u01b0\u1ee3c \u0111\u01b0\u1eddng k\u00ednh 5 g\u1ee3n s\u00f3ng li\u00ean ti\u1ebfp l\u1ea7n l\u01b0\u1ee3t b\u1eb1ng 12,4; 14,3; 16,35; 18,3 v\u00e0 20,45cm. T\u00ednh t\u1ed1c \u0111\u1ed9 truy\u1ec1n s\u00f3ng.<\/span><\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
B\u01b0\u1edbc s\u00f3ng \u0111\u01b0\u1ee3c t\u00ednh l\u00e0 kho\u1ea3ng c\u00e1ch gi\u1eefa 2 \u0111\u1ec9nh s\u00f3ng li\u00ean ti\u1ebfp \u03bb = R_{2<\/sub>\u00a0\u2013 R_{1<\/sub>\u00a0(v\u1edbi R l\u00e0 b\u00e1n k\u00ednh c\u1ee7a s\u00f3ng)<\/p>\n}}
$\"\"$ <\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
B\u00e0i 1 (trang 40 SGK V\u1eadt L\u00fd 12):\u00a0S\u00f3ng c\u01a1 l\u00e0 g\u00ec? L\u1eddi gi\u1ea3i: S\u00f3ng c\u01a1 l\u00e0 dao \u0111\u1ed9ng c\u01a1 lan truy\u1ec1n trong m\u1ed9t m\u00f4i tr\u01b0\u1eddng. B\u00e0i 2 (trang 40 SGK V\u1eadt L\u00fd 12):\u00a0Th\u1ebf n\u00e0o l\u00e0 s\u00f3ng ngang? Th\u1ebf n\u00e0o l\u00e0 s\u00f3ng d\u1ecdc ? L\u1eddi gi\u1ea3i: S\u00f3ng ngang l\u00e0 song trong \u0111\u00f3 c\u00e1c ph\u1ea7n t\u1eed c\u1ee7a […]<\/p>\n","protected":false},"author":3,"featured_media":24857,"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":"\nCh\u01b0\u01a1ng 2 - B\u00e0i 7: S\u00f3ng c\u01a1 v\u00e0 s\u1ef1 truy\u1ec1n s\u00f3ng c\u01a1<\/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\/chuong-2-bai-7-song-co-va-su-truyen-song-co\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ch\u01b0\u01a1ng 2 - B\u00e0i 7: S\u00f3ng c\u01a1 v\u00e0 s\u1ef1 truy\u1ec1n s\u00f3ng c\u01a1\" \/>\n<meta property=\"og:description\" content=\"B\u00e0i 1 (trang 40 SGK V\u1eadt L\u00fd 12):\u00a0S\u00f3ng c\u01a1 l\u00e0 g\u00ec? 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