{"segment":[{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"C\u00e2u ph\u00e1t bi\u1ec3u n\u00e0o d\u01b0\u1edbi \u0111\u00e2y l\u00e0 \u0111\u00fang khi n\u00f3i v\u1ec1 t\u00ednh ch\u1ea5t \u1ea3nh c\u1ee7a m\u1ed9t v\u1eadt t\u1ea1o b\u1edfi g\u01b0\u01a1ng c\u1ea7u l\u1ed3i?","select":["A. kh\u00f4ng h\u1ee9ng \u0111\u01b0\u1ee3c tr\u00ean m\u00e0n, nh\u1ecf h\u01a1n v\u1eadt","B. h\u1ee9ng \u0111\u01b0\u1ee3c tr\u00ean m\u00e0n, nh\u1ecf h\u01a1n v\u1eadt","C. h\u1ee9ng \u0111\u01b0\u1ee3c tr\u00ean m\u00e0n, b\u1eb1ng v\u1eadt","D. kh\u00f4ng h\u1ee9ng \u0111\u01b0\u1ee3c tr\u00ean m\u00e0n, b\u1eb1ng v\u1eadt"],"hint":"","explain":"<span class='basic_left'>T\u00ednh ch\u1ea5t \u1ea3nh c\u1ee7a m\u1ed9t v\u1eadt t\u1ea1o b\u1edfi g\u01b0\u01a1ng c\u1ea7u l\u1ed3i l\u00e0 kh\u00f4ng h\u1ee9ng \u0111\u01b0\u1ee3c tr\u00ean m\u00e0n v\u00e0 nh\u1ecf h\u01a1n v\u1eadt.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":2151},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"Tr\u00ean xe \u00f4 t\u00f4, ng\u01b0\u1eddi ta g\u1eafn g\u01b0\u01a1ng c\u1ea7u l\u1ed3i \u0111\u1ec3 cho ng\u01b0\u1eddi l\u00e1i xe quan s\u00e1t \u0111\u01b0\u1ee3c c\u00e1c v\u1eadt \u1edf ph\u00eda sau c\u00f3 l\u1ee3i g\u00ec h\u01a1n l\u00e0 d\u00f9ng g\u01b0\u01a1ng ph\u1eb3ng?","select":["A. \u1ea3nh nh\u00ecn th\u1ea5y trong g\u01b0\u01a1ng c\u1ea7u l\u1ed3i r\u00f5 h\u01a1n trong g\u01b0\u01a1ng ph\u1eb3ng","B. \u1ea3nh nh\u00ecn th\u1ea5y trong g\u01b0\u01a1ng c\u1ea7u l\u1ed3i to h\u01a1n trong g\u01b0\u01a1ng ph\u1eb3ng","C. v\u00f9ng nh\u00ecn th\u1ea5y c\u1ee7a g\u01b0\u01a1ng c\u1ea7u l\u1ed3i l\u1edbn h\u01a1n v\u00f9ng nh\u00ecn th\u1ea5y c\u1ee7a g\u01b0\u01a1ng ph\u1eb3ng c\u00f3 c\u00f9ng k\u00edch th\u01b0\u1edbc","D. v\u00f9ng nh\u00ecn th\u1ea5y c\u1ee7a g\u01b0\u01a1ng c\u1ea7u l\u1ed3i s\u00e1ng r\u00f5 h\u01a1n v\u00f9ng nh\u00ecn th\u1ea5y c\u1ee7a g\u01b0\u01a1ng ph\u1eb3ng"],"hint":"","explain":"<span class='basic_left'>Tr\u00ean xe \u00f4 t\u00f4, ng\u01b0\u1eddi ta g\u1eafn g\u01b0\u01a1ng c\u1ea7u l\u1ed3i \u0111\u1ec3 cho ng\u01b0\u1eddi l\u00e1i xe quan s\u00e1t \u0111\u01b0\u1ee3c c\u00e1c v\u1eadt \u1edf ph\u00eda sau v\u00ec v\u00f9ng nh\u00ecn th\u1ea5y c\u1ee7a g\u01b0\u01a1ng c\u1ea7u l\u1ed3i l\u1edbn h\u01a1n v\u00f9ng nh\u00ecn th\u1ea5y c\u1ee7a g\u01b0\u01a1ng ph\u1eb3ng c\u00f3 c\u00f9ng k\u00edch th\u01b0\u1edbc.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2152},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"\u1ea2nh c\u1ee7a m\u1ed9t v\u1eadt t\u1ea1o b\u1edfi g\u01b0\u01a1ng c\u1ea7u l\u1ed3i c\u00f3 nh\u1eefng t\u00ednh ch\u1ea5t n\u00e0o sau \u0111\u00e2y?","select":["A. \u1ea3nh th\u1eadt, b\u1eb1ng v\u1eadt","B. \u1ea3nh \u1ea3o, b\u1eb1ng v\u1eadt","C. \u1ea3nh \u1ea3o, c\u00e1ch g\u01b0\u01a1ng m\u1ed9t kho\u1ea3ng b\u1eb1ng kho\u1ea3ng c\u00e1ch t\u1eeb v\u1eadt \u0111\u1ebfn g\u01b0\u01a1ng","D. kh\u00f4ng h\u1ee9ng \u0111\u01b0\u1ee3c tr\u00ean m\u00e0n v\u00e0 b\u00e9 h\u01a1n v\u1eadt"],"hint":"","explain":"<span class='basic_left'>\u1ea2nh c\u1ee7a m\u1ed9t v\u1eadt t\u1ea1o b\u1edfi g\u01b0\u01a1ng c\u1ea7u l\u1ed3i c\u00f3 nh\u1eefng t\u00ednh ch\u1ea5t kh\u00f4ng h\u1ee9ng \u0111\u01b0\u1ee3c tr\u00ean m\u00e0n v\u00e0 b\u00e9 h\u01a1n v\u1eadt.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2153},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"Chi\u1ebfu m\u1ed9t ch\u00f9m s\u00e1ng song song l\u00ean m\u1ed9t g\u01b0\u01a1ng c\u1ea7u l\u1ed3i, ta thu \u0111\u01b0\u1ee3c m\u1ed9t ch\u00f9m s\u00e1ng ph\u1ea3n x\u1ea1 c\u00f3 t\u00ednh ch\u1ea5t:","select":["A. song song","B. h\u1ed9i t\u1ee5","C. ph\u00e2n k\u00ec","D. kh\u00f4ng truy\u1ec1n theo \u0111\u01b0\u1eddng th\u1eb3ng"],"hint":"","explain":"<span class='basic_left'>Khi chi\u1ebfu m\u1ed9t ch\u00f9m s\u00e1ng song song l\u00ean m\u1ed9t g\u01b0\u01a1ng c\u1ea7u l\u1ed3i, ta thu \u0111\u01b0\u1ee3c m\u1ed9t ch\u00f9m s\u00e1ng ph\u1ea3n x\u1ea1 c\u00f3 t\u00ednh ch\u1ea5t ph\u00e2n k\u00ec.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2154},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"\u0110\u1eb7t hai vi\u00ean pin gi\u1ed1ng h\u1ec7t nhau tr\u01b0\u1edbc m\u1ed9t g\u01b0\u01a1ng c\u1ea7u l\u1ed3i v\u00e0 m\u1ed9t g\u01b0\u01a1ng ph\u1eb3ng. K\u1ebft lu\u1eadn n\u00e0o sau \u0111\u00e2y l\u00e0 \u0111\u00fang khi so s\u00e1nh k\u00edch th\u01b0\u1edbc \u1ea3nh c\u1ee7a vi\u00ean pin t\u1ea1o b\u1edfi g\u01b0\u01a1ng c\u1ea7u l\u1ed3i v\u00e0 g\u01b0\u01a1ng ph\u1eb3ng?","select":["A. \u1ea3nh c\u1ee7a g\u01b0\u01a1ng c\u1ea7u l\u1ed3i nh\u1ecf h\u01a1n \u1ea3nh c\u1ee7a g\u01b0\u01a1ng ph\u1eb3ng","B. \u1ea3nh c\u1ee7a g\u01b0\u01a1ng c\u1ea7u l\u1ed3i b\u1eb1ng \u1ea3nh c\u1ee7a g\u01b0\u01a1ng ph\u1eb3ng","C. \u1ea3nh c\u1ee7a g\u01b0\u01a1ng c\u1ea7u l\u1ed3i l\u1edbn h\u01a1n \u1ea3nh c\u1ee7a g\u01b0\u01a1ng ph\u1eb3ng","D. kh\u00f4ng th\u1ec3 so s\u00e1nh \u0111\u01b0\u1ee3c"],"hint":"","explain":"<span class='basic_left'>Khi \u0111\u1eb7t hai vi\u00ean pin gi\u1ed1ng h\u1ec7t nhau tr\u01b0\u1edbc m\u1ed9t g\u01b0\u01a1ng c\u1ea7u l\u1ed3i v\u00e0 m\u1ed9t g\u01b0\u01a1ng ph\u1eb3ng ta th\u1ea5y \u1ea3nh c\u1ee7a g\u01b0\u01a1ng c\u1ea7u l\u1ed3i nh\u1ecf h\u01a1n \u1ea3nh c\u1ee7a g\u01b0\u01a1ng ph\u1eb3ng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":2155},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"V\u00f9ng nh\u00ecn th\u1ea5y c\u1ee7a g\u01b0\u01a1ng c\u1ea7u l\u1ed3i nh\u01b0 th\u1ebf n\u00e0o so v\u1edbi v\u00f9ng nh\u00ecn th\u1ea5y c\u1ee7a g\u01b0\u01a1ng ph\u1eb3ng c\u00f3 c\u00f9ng k\u00edch th\u01b0\u1edbc?","select":["A. h\u1eb9p h\u01a1n","B. b\u1eb1ng nhau","C. r\u1ed9ng h\u01a1n ","D. c\u00f3 th\u1ec3 l\u1edbn h\u01a1n ho\u1eb7c b\u1eb1ng"],"hint":"","explain":"<span class='basic_left'>G\u01b0\u01a1ng c\u1ea7u l\u1ed3i cho v\u00f9ng nh\u00ecn th\u1ea5y r\u1ed9ng h\u01a1n g\u01b0\u01a1ng ph\u1eb3ng c\u00f9ng k\u00edch th\u01b0\u1edbc.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2156},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"V\u1eadt n\u00e0o sau \u0111\u00e2y c\u00f3 h\u00ecnh d\u1ea1ng gi\u1ed1ng m\u1ed9t g\u01b0\u01a1ng c\u1ea7u l\u1ed3i?","select":["A. m\u1eb7t n\u01b0\u1edbc l\u1eb7ng s\u00f3ng","B. \u0111\u00e1y c\u1ed1c th\u1ee7y tinh","C. \u0111\u00e1y ch\u1eadu nh\u1ef1a","D. m\u1eb7t ngo\u00e0i chi\u1ebfc th\u00eca inox"],"hint":"","explain":"<span class='basic_left'>M\u1eb7t ngo\u00e0i chi\u1ebfc th\u00eca inox c\u00f3 h\u00ecnh d\u1ea1ng gi\u1ed1ng m\u1ed9t g\u01b0\u01a1ng c\u1ea7u l\u1ed3i.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":2157},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"G\u01b0\u01a1ng c\u1ea7u l\u1ed3i th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u1edf \u0111\u00e2u?","select":["A. G\u01b0\u01a1ng chi\u1ebfu h\u1eadu c\u1ee7a \u00f4 t\u00f4, xe m\u00e1y","B. G\u01b0\u01a1ng \u0111\u1eb7t \u1edf nh\u1eefng \u0111o\u1ea1n \u0111\u01b0\u1eddng g\u1ea5p kh\u00fac","C. G\u01b0\u01a1ng \u0111\u1eb7t \u1edf \u0111\u1ea7u xe t\u1ea3i","D. C\u1ea3 3 tr\u01b0\u1eddng h\u1ee3p tr\u00ean"],"hint":"","explain":"<span class='basic_left'>V\u00ec g\u01b0\u01a1ng c\u1ea7u l\u1ed3i c\u00f3 ph\u1ea1m vi nh\u00ecn th\u1ea5y r\u1ed9ng h\u01a1n g\u01b0\u01a1ng ph\u1eb3ng n\u00ean n\u00f3 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng \u0111\u1ec3 m\u1edf r\u1ed9ng t\u1ea7m nh\u00ecn c\u1ee7a ng\u01b0\u1eddi tham gia giao th\u00f4ng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2158},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"Tr\u00ean xe \u00f4 t\u00f4, ng\u01b0\u1eddi ta g\u1eafn g\u01b0\u01a1ng c\u1ea7u l\u1ed3i \u0111\u1ec3 cho ng\u01b0\u1eddi l\u00e1i xe quan s\u00e1t c\u00e1c v\u1eadt \u1edf ph\u00eda sau xe c\u00f3 l\u1ee3i g\u00ec h\u01a1n l\u00e0 g\u1eafn g\u01b0\u01a1ng ph\u1eb3ng?","select":["A. \u1ea2nh nh\u00ecn th\u1ea5y trong g\u01b0\u01a1ng c\u1ea7u l\u1ed3i r\u00f5 h\u01a1n trong g\u01b0\u01a1ng ph\u1eb3ng.","B. \u1ea2nh nh\u00ecn th\u1ea5y trong g\u01b0\u01a1ng c\u1ea7u l\u1ed3i to h\u01a1n trong g\u01b0\u01a1ng ph\u1eb3ng.","C. V\u00f9ng nh\u00ecn th\u1ea5y c\u1ee7a g\u01b0\u01a1ng c\u1ea7u l\u1ed3i l\u1edbn h\u01a1n v\u00f9ng nh\u00ecn th\u1ea5y c\u1ee7a g\u01b0\u01a1ng ph\u1eb3ng c\u00f3 c\u00f9ng k\u00edch th\u01b0\u1edbc.","D. V\u00f9ng nh\u00ecn th\u1ea5y c\u1ee7a g\u01b0\u01a1ng c\u1ea7u l\u1ed3i s\u00e1ng r\u00f5 h\u01a1n v\u00f9ng nh\u00ecn th\u1ea5y c\u1ee7a g\u01b0\u01a1ng ph\u1eb3ng."],"hint":"","explain":"<span class='basic_left'>C\u00f3 l\u1ee3i h\u01a1n l\u00e0 v\u00f9ng nh\u00ecn th\u1ea5y c\u1ee7a g\u01b0\u01a1ng c\u1ea7u l\u1ed3i l\u1edbn h\u01a1n v\u00f9ng nh\u00ecn th\u1ea5y c\u1ee7a g\u01b0\u01a1ng ph\u1eb3ng c\u00f3 c\u00f9ng k\u00edch th\u01b0\u1edbc.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2159},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"Ch\u1ecdn ph\u00e1t bi\u1ec3u \u0111\u00fang:","select":["A. \u1ea3nh c\u1ee7a c\u00e2y b\u00fat ch\u00ec t\u1ea1o b\u1edfi g\u01b0\u01a1ng c\u1ea7u l\u1ed3i c\u00f3 th\u1ec3 h\u1ee9ng \u0111\u01b0\u1ee3c tr\u00ean m\u00e0n","B. \u1ea3nh c\u1ee7a c\u00e2y b\u00fat ch\u00ec t\u1ea1o b\u1edfi g\u01b0\u01a1ng c\u1ea7u l\u1ed3i kh\u00f4ng th\u1ec3 h\u1ee9ng \u0111\u01b0\u1ee3c tr\u00ean m\u00e0n nh\u01b0ng c\u00f3 th\u1ec3 ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi v\u1eadt","C. \u1ea3nh c\u1ee7a c\u00e2y b\u00fat ch\u00ec qua g\u01b0\u01a1ng c\u1ea7u l\u1ed3i bao gi\u1edd c\u0169ng l\u00e0 \u1ea3nh \u1ea3o v\u00e0 c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt","D. t\u00f9y theo c\u00e1ch \u0111\u1eb7t b\u00fat ch\u00ec m\u00e0 \u1ea3nh c\u00f3 th\u1ec3 s\u1ebd ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi v\u1eadt tuy nhi\u00ean \u1ea3nh thu \u0111\u01b0\u1ee3c s\u1ebd nh\u1ecf h\u01a1n v\u1eadt"],"hint":"","explain":"<span class='basic_left'>\u1ea2nh t\u1ea1o b\u1edfi g\u01b0\u01a1ng c\u1ea7u l\u1ed3i l\u00e0 \u1ea3nh \u1ea3o, c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt v\u00e0 nh\u1ecf h\u01a1n v\u1eadt do \u0111\u00f3 c\u00e2u A, B, D sai.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2160},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"\u1ea2nh c\u1ee7a m\u1ed9t v\u1eadt qua g\u01b0\u01a1ng c\u1ea7u l\u1ed3i v\u00e0 g\u01b0\u01a1ng ph\u1eb3ng c\u00f3 c\u00f9ng \u0111i\u1ec3m chung l\u00e0:","select":["A. \u0111\u1ec1u l\u00e0 \u1ea3nh th\u1eadt","B. \u0111\u1ec1u kh\u00f4ng h\u1ee9ng \u0111\u01b0\u1ee3c tr\u00ean m\u00e0n","C. \u0111\u1ec1u nh\u1ecf h\u01a1n v\u1eadt","D. \u0111\u1ec1u l\u1edbn h\u01a1n v\u1eadt"],"hint":"","explain":"<span class='basic_left'>\u1ea2nh c\u1ee7a m\u1ed9t v\u1eadt qua g\u01b0\u01a1ng c\u1ea7u l\u1ed3i v\u00e0 g\u01b0\u01a1ng ph\u1eb3ng c\u00f3 c\u00f9ng \u0111i\u1ec3m chung l\u00e0 \u1ea3nh \u1ea3o v\u00e0 kh\u00f4ng h\u1ee9ng \u0111\u01b0\u1ee3c tr\u00ean m\u00e0n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2161},{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"Ch\u1ecdn c\u00e2u tr\u1ea3 l\u1eddi sai.<br\/>\u0110\u1ed1i v\u1edbi g\u01b0\u01a1ng c\u1ea7u l\u1ed3i:","select":["A. Ti\u00eau \u0111i\u1ec3m ch\u00ednh F l\u00e0 m\u1ed9t \u0111i\u1ec3m \u1ea3o n\u1eb1m sau g\u01b0\u01a1ng","B. V\u1eadt s\u00e1ng AB lu\u00f4n lu\u00f4n c\u00f3 \u1ea3nh \u1ea3o","C. V\u1eadt s\u00e1ng AB c\u00f3 th\u1ec3 c\u00f3 \u1ea3nh th\u1eadt hay \u1ea3o t\u00f9y theo v\u1ecb tr\u00ed c\u1ee7a AB \u0111\u1ed1i v\u1edbi g\u01b0\u01a1ng","D. Ch\u00f9m tia t\u1edbi song song th\u00ec ch\u00f9m tia ph\u1ea3n x\u1ea1 ph\u00e2n k\u00ec"],"hint":"","explain":"<span class='basic_left'>\u0110\u1ed1i v\u1edbi g\u01b0\u01a1ng c\u1ea7u l\u1ed3i:<br\/>-Ti\u00eau \u0111i\u1ec3m ch\u00ednh F l\u00e0 m\u1ed9t \u0111i\u1ec3m \u1ea3o n\u1eb1m sau<br\/>-V\u1eadt s\u00e1ng AB lu\u00f4n lu\u00f4n c\u00f3 \u1ea3nh \u1ea3o<br\/>-Ch\u00f9m tia t\u1edbi song song th\u00ec ch\u00f9m tia ph\u1ea3n x\u1ea1 ph\u00e2n k\u00ec.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2162},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t: <br\/>\u0110\u1ed1i v\u1edbi g\u01b0\u01a1ng c\u1ea7u l\u1ed3i:","select":["A. V\u1eadt s\u00e1ng AB lu\u00f4n lu\u00f4n c\u00f3 \u1ea3nh \u1ea3o l\u1edbn h\u01a1n v\u1eadt","B. V\u1eadt s\u00e1ng AB lu\u00f4n lu\u00f4n c\u00f3 \u1ea3nh ng\u01b0\u1ee3c chi\u1ec1u \u1edf trong kho\u1ea3ng OF","C. A, B \u0111\u1ec1u \u0111\u00fang","D. T\u1ea5t c\u1ea3 \u0111\u1ec1u sai"],"hint":"","explain":"<span class='basic_left'>\u0110\u1ed1i v\u1edbi g\u01b0\u01a1ng c\u1ea7u l\u1ed3i v\u1eadt s\u00e1ng AB lu\u00f4n lu\u00f4n c\u00f3 \u1ea3nh \u1ea3o, c\u00f9ng chi\u1ec1u v\u00e0 nh\u1ecf h\u01a1n v\u1eadt.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2163},{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"Ch\u1ecdn c\u00e2u tr\u1ea3 l\u1eddi sai:<br\/> \u0110\u1ed1i v\u1edbi g\u01b0\u01a1ng c\u1ea7u l\u1ed3i:","select":["A. V\u1eadt s\u00e1ng AB lu\u00f4n lu\u00f4n c\u00f3 \u1ea3nh nh\u1ecf h\u01a1n v\u1eadt","B. V\u1eadt s\u00e1ng AB t\u1edbi g\u1ea7n g\u01b0\u01a1ng th\u00ec \u1ea3nh ra xa g\u01b0\u01a1ng","C. V\u1eadt s\u00e1ng AB c\u00f3 th\u1ec3 c\u00f3 \u1ea3nh th\u1eadt hay \u1ea3o t\u00f9y heo v\u1ecb tr\u00ed c\u1ee7a AB \u0111\u1ed1i v\u1edbi g\u01b0\u01a1ng","D. Ch\u00f9m tia s\u00e1ng t\u1edbi h\u1ed9i t\u1ee5 th\u00ec ch\u00f9m tia ph\u1ea3n x\u1ea1 lu\u00f4n lu\u00f4n ph\u00e2n k\u00ec"],"hint":"","explain":"<span class='basic_left'>\u0110\u1ed1i v\u1edbi g\u01b0\u01a1ng c\u1ea7u l\u1ed3i v\u1eadt s\u00e1ng AB lu\u00f4n lu\u00f4n c\u00f3 \u1ea3nh \u1ea3o.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2164},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"\u1ea2nh c\u1ee7a m\u1ed9t v\u1eadt th\u1eadt \u0111\u01b0\u1ee3c t\u1ea1o n\u00ean b\u1edfi m\u1ed9t g\u01b0\u01a1ng c\u1ea7u l\u1ed3i bao gi\u1edd c\u0169ng:","select":["A. L\u00e0 \u1ea3nh \u1ea3o","B. Ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi v\u1eadt","C. L\u1edbn h\u01a1n v\u1eadt","D. C\u00f3 c\u1ea3 ba t\u00ednh ch\u1ea5t tr\u00ean"],"hint":"","explain":"<span class='basic_left'>\u1ea2nh c\u1ee7a m\u1ed9t v\u1eadt th\u1eadt \u0111\u01b0\u1ee3c t\u1ea1o n\u00ean b\u1edfi m\u1ed9t g\u01b0\u01a1ng c\u1ea7u l\u1ed3i bao gi\u1edd c\u0169ng l\u00e0 \u1ea3nh \u1ea3o, c\u00f9ng chi\u1ec1u v\u1edbi v\u1eadt v\u00e0 b\u00e9 h\u01a1n v\u1eadt.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":2165},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"M\u1eb7t ph\u1ea3n x\u1ea1 c\u1ee7a g\u01b0\u01a1ng c\u1ea7u l\u1ed3i l\u00e0:","select":["A. M\u1eb7t l\u00f5m c\u1ee7a ch\u1ecfm c\u1ea7u","B. M\u1eb7t l\u1ed3i c\u1ee7a ch\u1ecfm c\u1ea7u","C. M\u1eb7t ph\u1eb3ng nh\u01b0 g\u01b0\u01a1ng ph\u1eb3ng","D. A, B, C \u0111\u1ec1u \u0111\u00fang"],"hint":"","explain":"<span class='basic_left'>M\u1eb7t ph\u1ea3n x\u1ea1 c\u1ee7a g\u01b0\u01a1ng c\u1ea7u l\u1ed3i l\u00e0 m\u1eb7t l\u1ed3i c\u1ee7a ch\u1ecfm c\u1ea7u.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2166},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"Tr\u01b0\u1eddng h\u1ee3p n\u00e0o sau \u0111\u00e2y kh\u00f4ng n\u00ean d\u00f9ng g\u01b0\u01a1ng c\u1ea7u l\u1ed3i: ","select":["A. D\u00f9ng g\u01b0\u01a1ng l\u00e0m k\u00ednh chi\u1ebfu h\u1eadu tr\u00ean c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n giao th\u00f4ng","B. D\u00f9ng l\u00e0m g\u01b0\u01a1ng soi trong gia \u0111\u00ecnh v\u00ec v\u00f9ng nh\u00ecn h\u1ea5y c\u1ee7a g\u01b0\u01a1ng c\u1ea7u l\u1ed3i r\u1ed9ng h\u01a1n v\u00f9ng nh\u00ecn th\u1ea5y c\u1ee7a g\u01b0\u01a1ng ph\u1eb3ng c\u00f3 c\u00f9ng k\u00edch th\u01b0\u1edbc","C. \u0110\u1eb7t g\u01b0\u01a1ng c\u1ea7u l\u1ed3i \u1edf nh\u1eefng \u0111\u01b0\u1eddng cong c\u00f3 kh\u00fac cua h\u1eb9p","D. D\u00f9ng g\u01b0\u01a1ng c\u1ea7u l\u1ed3i \u0111\u1ec3 t\u1ea1o ra nh\u1eefng h\u00ecnh \u1ea3nh kh\u00e1c v\u1edbi v\u1eadt trong c\u00e1c \u201cnh\u00e0 c\u01b0\u1eddi\u201d"],"hint":"","explain":"<span class='basic_left'>M\u1eb7c d\u00f9 v\u00f9ng nh\u00ecn th\u1ea5y c\u1ee7a g\u01b0\u01a1ng c\u1ea7u l\u1ed3i r\u1ed9ng h\u01a1n v\u00f9ng nh\u00ecn th\u1ea5y c\u1ee7a g\u01b0\u01a1ng ph\u1eb3ng c\u00f3 c\u00f9ng k\u00edch th\u01b0\u1edbc nh\u01b0ng \u1ea3nh c\u1ee7a g\u01b0\u01a1ng c\u1ea7u l\u1ed3i t\u1ea1o ra kh\u00f4ng c\u00f3 k\u00edch th\u01b0\u1edbc b\u1eb1ng v\u1eadt th\u1eadt do \u0111\u00f3 n\u1ebfu d\u00f9ng g\u01b0\u01a1ng c\u1ea7u l\u1ed3i \u0111\u1ec3 soi g\u01b0\u01a1ng ta s\u1ebd kh\u00f4ng nh\u00ecn \u0111\u00e1nh gi\u00e1 ch\u00ednh x\u00e1c \u0111\u01b0\u1ee3c g\u01b0\u01a1ng m\u1eb7t c\u1ee7a ng\u01b0\u1eddi soi.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":2167},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"Em h\u00e3y ch\u1ecdn c\u00e2u \u0111\u00fang trong c\u00e1c c\u00e2u d\u01b0\u1edbi \u0111\u00e2y:","select":["A. \u1ea3nh qua g\u01b0\u01a1ng c\u1ea7u l\u1ed3i bao gi\u1edd c\u0169ng l\u00e0 \u1ea3nh \u1ea3o","B. g\u01b0\u01a1ng c\u1ea7u l\u1ed3i cho \u1ea3nh nh\u1ecf h\u01a1n v\u1eadt tuy nhi\u00ean c\u00e0ng \u0111\u01b0a v\u1eadt ra xa th\u00ec k\u00edch th\u01b0\u1edbc c\u1ee7a \u1ea3nh c\u00e0ng t\u0103ng","C. n\u1ebfu d\u1ecbch v\u1eadt ra r\u1ea5t xa g\u01b0\u01a1ng th\u00ec g\u01b0\u01a1ng c\u1ea7u l\u1ed3i s\u1ebd cho \u1ea3nh b\u1eb1ng v\u1eadt","D. t\u1ea5t c\u1ea3 ba c\u00e2u tr\u00ean \u0111\u1ec1u \u0111\u00fang"],"hint":"","explain":"<span class='basic_left'>\u1ea2nh qua g\u01b0\u01a1ng c\u1ea7u l\u1ed3i bao gi\u1edd c\u0169ng l\u00e0 \u1ea3nh \u1ea3o.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":2168},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/vatly/bai7/lv2/img\/h0.jpg'\/><\/center>Cho m\u1ed9t \u0111i\u1ec3m s\u00e1ng S n\u1eb1m tr\u01b0\u1edbc g\u01b0\u01a1ng c\u1ea7u nh\u01b0 h\u00ecnh tr\u00ean. Ch\u00f9m tia ph\u1ea3n x\u1ea1 thu \u0111\u01b0\u1ee3c l\u00e0 ch\u00f9m tia g\u00ec? \u1ea2nh thu \u0111\u01b0\u1ee3c l\u00e0 \u1ea3nh g\u00ec?","select":["A. Song song, \u1ea3nh th\u1eadt S\u2019 g\u1ea7n m\u1eb7t g\u01b0\u01a1ng h\u01a1n S","B. H\u1ed9i t\u1ee5, \u1ea3nh \u1ea3o S\u2019 xa m\u1eb7t g\u01b0\u01a1ng h\u01a1n S","C. Ph\u00e2n k\u00ec, \u1ea3nh th\u1eadt S\u2019 xa m\u1eb7t g\u01b0\u01a1ng h\u01a1n S","D. Ph\u00e2n k\u00ec, \u1ea3nh \u1ea3o S\u2019 g\u1ea7n m\u1eb7t g\u01b0\u01a1ng h\u01a1n S"],"hint":"","explain":"<span class='basic_left'>M\u1ed7i di\u1ec7n t\u00edch nh\u1ecf tr\u00ean g\u01b0\u01a1ng c\u1ea7u l\u1ed3i c\u00f3 th\u1ec3 xem nh\u01b0 m\u1ed9t g\u01b0\u01a1ng ph\u1eb3ng nh\u1ecf \u0111\u1eb7t \u1edf \u0111\u00f3. V\u00ec th\u1ebf c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng \u0111\u1ecbnh lu\u1eadt ph\u1ea3n x\u1ea1 \u00e1nh s\u00e1ng cho m\u1ed7i g\u01b0\u01a1ng ph\u1eb3ng \u0111\u00f3. Ch\u00f9m tia ph\u1ea3n x\u1ea1 thu \u0111\u01b0\u1ee3c l\u00e0 ch\u00f9m tia ph\u00e2n k\u00ec, \u1ea3nh \u1ea3o S\u2019 g\u1ea7n m\u1eb7t g\u01b0\u01a1ng h\u01a1n S. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2169},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"Ch\u1ecdn c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang:<br\/>V\u1eadt s\u00e1ng AB \u0111\u1eb7t tr\u01b0\u1edbc m\u1ed9t g\u01b0\u01a1ng, cho \u1ea3nh A\u2019B\u2019 c\u00f9ng chi\u1ec1u, nh\u1ecf h\u01a1n v\u1eadt AB, \u0111\u00f3 l\u00e0:","select":["A. G\u01b0\u01a1ng ph\u1eb3ng.","B. G\u01b0\u01a1ng c\u1ea7u l\u1ed3i.","C. G\u01b0\u01a1ng c\u1ea7u l\u00f5m.","D. C\u1ea3 ba lo\u1ea1i g\u01b0\u01a1ng tr\u00ean \u0111\u1ec1u th\u1ecfa"],"hint":"","explain":"<span class='basic_left'>G\u01b0\u01a1ng c\u1ea7u l\u1ed3i. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2170}],"lesson":{"save":0,"level":2}}