{"segment":[{"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":"Trong s\u1ed1 b\u1ed1n ngu\u1ed3n s\u00e1ng sau \u0111\u00e2y, ngu\u1ed3n n\u00e0o kh\u00f4ng ph\u00e1t ra \u00e1nh s\u00e1ng tr\u1eafng ? ","select":["A. B\u00f3ng \u0111\u00e8n pin \u0111ang s\u00e1ng.","B. B\u00f3ng \u0111\u00e8n \u1ed1ng th\u00f4ng d\u1ee5ng.","C. M\u1ed9t \u0111\u00e8n LED.","D. M\u1ed9t ng\u00f4i sao."],"hint":"","explain":"<span class='basic_left'>C\u00e1c ngu\u1ed3n ph\u00e1t \u00e1nh s\u00e1ng tr\u1eafng <br\/>M\u1eb7t tr\u1eddi l\u00e0 ngu\u1ed3n ph\u00e1t \u00e1nh s\u00e1ng tr\u1eafng r\u1ea5t m\u1ea1nh. \u00c1nh s\u00e1ng m\u1eb7t tr\u1eddi \u0111\u1ebfn m\u1eaft ta l\u00fac ban ng\u00e0y l\u00e0 \u00e1nh s\u00e1ng tr\u1eafng. <br\/>C\u00e1c \u0111\u00e8n d\u00e2y t\u00f3c n\u00f3ng s\u00e1ng nh\u01b0 b\u00f3ng \u0111\u00e8n pha c\u1ee7a xe \u00f4 t\u00f4, xe m\u00e1y, b\u00f3ng \u0111\u00e8n pin, c\u00e1c b\u00f3ng \u0111\u00e8n tr\u00f2n\u2026 c\u00f9ng l\u00e0 c\u00e1c ngu\u1ed3n ph\u00e1t \u00e1nh s\u00e1ng tr\u1eafng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":3611},{"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":"Ngu\u1ed3n s\u00e1ng n\u00e0o d\u01b0\u1edbi \u0111\u00e2y ph\u00e1t ra \u00e1nh s\u00e1ng tr\u1eafng? ","select":["A. \u0110\u00e8n LED v\u00e0ng.","B. \u0110\u00e8n neon trong b\u00fat th\u1eed \u0111i\u1ec7n.","C. \u0110\u00e8n pin.","D. Con \u0111om \u0111\u00f3m."],"hint":"","explain":"<span class='basic_left'>C\u00e1c ngu\u1ed3n ph\u00e1t \u00e1nh s\u00e1ng tr\u1eafng <br\/>M\u1eb7t tr\u1eddi l\u00e0 ngu\u1ed3n ph\u00e1t \u00e1nh s\u00e1ng tr\u1eafng r\u1ea5t m\u1ea1nh. \u00c1nh s\u00e1ng m\u1eb7t tr\u1eddi \u0111\u1ebfn m\u1eaft ta l\u00fac ban ng\u00e0y l\u00e0 \u00e1nh s\u00e1ng tr\u1eafng. <br\/>C\u00e1c \u0111\u00e8n d\u00e2y t\u00f3c n\u00f3ng s\u00e1ng nh\u01b0 b\u00f3ng \u0111\u00e8n pha c\u1ee7a xe \u00f4 t\u00f4, xe m\u00e1y, b\u00f3ng \u0111\u00e8n pin, c\u00e1c b\u00f3ng \u0111\u00e8n tr\u00f2n\u2026 c\u00f9ng l\u00e0 c\u00e1c ngu\u1ed3n ph\u00e1t \u00e1nh s\u00e1ng tr\u1eafng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":3612},{"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":"Ngu\u1ed3n s\u00e1ng n\u00e0o d\u01b0\u1edbi \u0111\u00e2y ph\u00e1t ra \u00e1nh s\u00e1ng m\u00e0u? ","select":["A. \u0110\u00e8n LED.","B. \u0110\u00e8n \u1ed1ng th\u01b0\u1eddng d\u00f9ng.","C. \u0110\u00e8n pin.","D. Ng\u1ecdn n\u1ebfn."],"hint":"","explain":"<span class='basic_left'> C\u00e1c ngu\u1ed3n ph\u00e1t \u00e1nh s\u00e1ng m\u00e0u <br\/>C\u00e1c \u0111\u00e8n LED ph\u00e1t ra \u00e1nh s\u00e1ng m\u00e0u. C\u00f3 \u0111\u00e8n ph\u00e1t ra \u00e1nh s\u00e1ng m\u00e0u \u0111\u1ecf, c\u00f3 \u0111\u00e8n ph\u00e1t ra \u00e1nh s\u00e1ng m\u00e0u v\u00e0ng, c\u00f3 \u0111\u00e8n ph\u00e1t ra \u00e1nh s\u00e1ng m\u00e0u l\u1ee5c\u2026 <br\/>B\u00fat laze th\u01b0\u1eddng d\u00f9ng ph\u00e1t ra \u00e1nh s\u00e1ng m\u00e0u \u0111\u1ecf. C\u00e1c \u0111\u00e8n \u1ed1ng ph\u00e1t ra \u00e1nh s\u00e1ng m\u00e0u \u0111\u1ecf, m\u00e0u v\u00e0ng, m\u00e0u t\u00edm\u2026 th\u01b0\u1eddng d\u00f9ng trong qu\u1ea3ng c\u00e1o.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":3613},{"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\u1ec9 ra c\u00e2u sai. C\u00f3 th\u1ec3 thu \u0111\u01b0\u1ee3c \u00e1nh s\u00e1ng \u0111\u1ecf n\u1ebfu: ","select":["A. Th\u1eafp s\u00e1ng m\u1ed9t \u0111\u00e8n LED \u0111\u1ecf.","B. Chi\u1ebfu m\u1ed9t ch\u00f9m s\u00e1ng tr\u1eafng qua m\u1ed9t t\u1ea5m l\u1ecdc m\u00e0u \u0111\u1ecf.","C. Chi\u1ebfu m\u1ed9t ch\u00f9m s\u00e1ng \u0111\u1ecf qua m\u1ed9t t\u1ea5m l\u1ecdc m\u00e0u \u0111\u1ecf.","D. Chi\u1ebfu m\u1ed9t ch\u00f9m s\u00e1ng \u0111\u1ecf qua t\u1ea5m l\u1ecdc m\u00e0u t\u00edm."],"hint":"","explain":"<span class='basic_left'>C\u00e1ch t\u1ea1o ra \u00e1nh s\u00e1ng m\u00e0u <br\/>- D\u00f9ng ngu\u1ed3n \u00e1nh s\u00e1ng m\u00e0u. n\u00ean c\u00e2u A \u0111\u00fang <br\/>- T\u1ea1o \u00e1nh s\u00e1ng m\u00e0u b\u1eb1ng c\u00e1c t\u1ea5m l\u1ecdc m\u00e0u <br\/>- Chi\u1ebfu \u00e1nh s\u00e1ng tr\u1eafng qua m\u1ed9t t\u1ea5m l\u1ecdc m\u00e0u ta s\u1ebd \u0111\u01b0\u1ee3c \u00e1nh s\u00e1ng c\u00f3 m\u00e0u c\u1ee7a t\u1ea5m l\u1ecdc.N\u00ean ta thu \u0111\u01b0\u1ee3c m\u00e0u \u0111\u1ecf \u1edf c\u00e2u B <br\/>- Chi\u1ebfu \u00e1nh s\u00e1ng m\u00e0u qua m\u1ed9t t\u1ea5m l\u1ecdc c\u00f9ng m\u00e0u ta s\u1ebd \u0111\u01b0\u1ee3c \u00e1nh s\u00e1ng v\u1eabn c\u00f3 m\u00e0u \u0111\u00f3. N\u00ean ta thu \u0111\u01b0\u1ee3c m\u00e0u \u0111\u1ecf \u1edf c\u00e2u C <br\/>- Chi\u1ebfu \u00e1nh s\u00e1ng m\u00e0u qua m\u1ed9t t\u1ea5m l\u1ecdc kh\u00e1c m\u00e0u s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c \u00e1nh s\u00e1ng m\u00e0u \u0111\u00f3 n\u1eefa n\u00ean khi chi\u1ebfu m\u00e0u \u0111\u1ecf l\u00ean t\u1ea5m l\u1ecdc m\u00e0u t\u00edm s\u1ebd k \u0111\u01b0\u1ee3c m\u00e0u \u0111\u1ecf<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":3614},{"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":"Nh\u00fang m\u1ed9t t\u1ea5m k\u00ednh m\u00e0u l\u1ee5c v\u00e0o m\u1ed9t b\u00ecnh n\u01b0\u1edbc m\u00e0u \u0111\u1ecf r\u1ed3i nh\u00ecn t\u1ea5m k\u00ednh qua th\u00e0nh ngo\u00e0i c\u1ee7a b\u00ecnh, ta s\u1ebd th\u1ea5y n\u00f3 c\u00f3 m\u00e0u g\u00ec? ","select":["A. M\u00e0u tr\u1eafng.","B. M\u00e0u \u0111\u1ecf.","C. M\u00e0u l\u1ee5c.","D. M\u00e0u \u0111en."],"hint":"","explain":"<span class='basic_left'>Nh\u00fang m\u1ed9t t\u1ea5m k\u00ednh m\u00e0u l\u1ee5c v\u00e0o m\u1ed9t b\u00ecnh n\u01b0\u1edbc m\u00e0u \u0111\u1ecf r\u1ed3i nh\u00ecn t\u1ea5m k\u00ednh qua th\u00e0nh ngo\u00e0i c\u1ee7a b\u00ecnh, ta s\u1ebd th\u1ea5y n\u00f3 c\u00f3 m\u00e0u \u0111en.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":3615},{"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 ch\u00f9m \u00e1nh s\u00e1ng tr\u1eafng qua m\u1ed9t k\u00ednh l\u1ecdc m\u00e0u t\u00edm, ch\u00f9m tia l\u00f3 c\u00f3 m\u00e0u ","select":["A. \u0111\u1ecf. ","B. v\u00e0ng.","C. t\u00edm. ","D. tr\u1eafng."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":3616},{"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":"Khi chi\u1ebfu ch\u00f9m \u00e1nh s\u00e1ng \u0111\u1ecf qua t\u1ea5m l\u1ecdc m\u00e0u xanh, \u1edf ph\u00eda sau t\u1ea5m l\u1ecdc ","select":["A. ta thu \u0111\u01b0\u1ee3c \u00e1nh s\u00e1ng M\u00e0u \u0111\u1ecf.","B. ta thu \u0111\u01b0\u1ee3c \u00e1nh s\u00e1ng M\u00e0u xanh.","C. t\u1ed1i (kh\u00f4ng c\u00f3 \u00e1nh s\u00e1ng truy\u1ec1n qua).","D. ta thu \u0111\u01b0\u1ee3c \u00e1nh s\u00e1ng \u00c1nh s\u00e1ng tr\u1eafng."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":3617},{"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\u00e1c ngu\u1ed3n ph\u00e1t \u00e1nh s\u00e1ng tr\u1eafng l\u00e0: ","select":["A. m\u1eb7t tr\u1eddi, \u0111\u00e8n pha \u00f4t\u00f4.","B. ngu\u1ed3n ph\u00e1t tia laze.","C. \u0111\u00e8n LED.","D. \u0111\u00e8n \u1ed1ng d\u00f9ng trong trang tr\u00ed."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":3618},{"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":"Ch\u1ecdn ph\u00e1t bi\u1ec3u \u0111\u00fang ","select":["A.C\u00f3 th\u1ec3 t\u1ea1o \u00e1nh s\u00e1ng v\u00e0ng b\u1eb1ng c\u00e1ch chi\u1ebfu \u00e1nh s\u00e1ng tr\u1eafng qua m\u1ed9t t\u1ea5m l\u1ecdc m\u00e0u v\u00e0ng.","B.B\u00fat Lade khi ho\u1ea1t \u0111\u1ed9ng th\u00ec ph\u00e1t ra \u00e1nh s\u00e1ng xanh.","C.\u00c1nh s\u00e1ng do \u0111\u00e8n pha \u00f4t\u00f4 ph\u00e1t ra l\u00e0 \u00e1nh s\u00e1ng v\u00e0ng.","D.B\u1ea5t k\u1ef3 ngu\u1ed3n s\u00e1ng n\u00e0o c\u0169ng ph\u00e1t ra \u00e1nh s\u00e1ng tr\u1eafng."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":3619},{"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 ch\u00f9m s\u00e1ng m\u00e0u l\u1ee5c qua m\u1ed9t k\u00ednh l\u1ecdc m\u00e0u l\u1ee5c, ch\u00f9m tia l\u00f3 c\u00f3 m\u00e0u ","select":["A. t\u00edm.","B. lam.","C. l\u1ee5c.","D. v\u00e0ng."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":3620},{"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":"Ch\u1ecdn c\u00e2u ph\u00e1t bi\u1ec3u \u0111\u00fang ","select":["A. Chi\u1ebfu \u00e1nh s\u00e1ng tr\u1eafng qua t\u1ea5m l\u1ecdc m\u00e0u ta s\u1ebd \u0111\u01b0\u1ee3c \u00e1nh s\u00e1ng c\u00f3 m\u00e0u c\u1ee7a t\u1ea5m l\u1ecdc.","B. Chi\u1ebfu \u00e1nh s\u00e1ng tr\u1eafng qua t\u1ea5m l\u1ecdc m\u00e0u ta s\u1ebd \u0111\u01b0\u1ee3c \u00e1nh s\u00e1ng c\u00f3 m\u00e0u tr\u1eafng h\u01a1n.","C. Chi\u1ebfu \u00e1nh s\u00e1ng tr\u1eafng qua b\u1ea5t c\u1ee9 t\u1ea5m l\u1ecdc m\u00e0u n\u00e0o ta c\u0169ng \u0111\u01b0\u1ee3c \u00e1nh s\u00e1ng c\u00f3 m\u00e0u \u0111\u1ecf.","D. Chi\u1ebfu \u00e1nh s\u00e1ng m\u00e0u qua t\u1ea5m l\u1ecdc m\u00e0u ta s\u1ebd \u0111\u01b0\u1ee3c \u00e1nh s\u00e1ng c\u00f3 m\u00e0u tr\u1eafng."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":3621},{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Ch\u1ecdn c\u00e2u tr\u1ea3 l\u1eddi sai: T\u1ea5m l\u1ecdc m\u00e0u c\u00f3 th\u1ec3 l\u00e0 ","select":["A. v\u1eadt r\u1eafn.","B. ch\u1ea5t l\u1ecfng.","C. m\u00e0ng m\u1ecfng.","D. ch\u00e2n kh\u00f4ng."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":3622},{"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":"Sau t\u1ea5m k\u00ednh l\u1ecdc m\u00e0u xanh ta thu \u0111\u01b0\u1ee3c \u00e1nh s\u00e1ng m\u00e0u xanh. Ch\u00f9m \u00e1nh s\u00e1ng chi\u1ebfu v\u00e0o t\u1ea5m l\u1ecdc l\u00e0 ","select":["A. a\u0301nh s\u00e1ng \u0111\u1ecf.","B. a\u0301nh s\u00e1ng v\u00e0ng.","C. a\u0301nh s\u00e1ng tr\u1eafng.","D. a\u0301nh s\u00e1ng t\u1eeb b\u00fat lade."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":3623},{"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":"Ch\u1ecdn ph\u00e1t bi\u1ec3u \u0111\u00fang ","select":["A. Khi nh\u00ecn th\u1ea5y v\u1eadt c\u00f3 m\u00e0u n\u00e0o (tr\u1eeb v\u1eadt \u0111en) th\u00ec c\u00f3 \u00e1nh s\u00e1ng m\u00e0u \u0111\u00f3 \u0111i v\u00e0o m\u1eaft ta.","B. T\u1ea5m l\u1ecdc m\u00e0u n\u00e0o th\u00ec h\u1ea5p th\u1ee5 t\u1ed1t \u00e1nh s\u00e1ng m\u00e0u \u0111\u00f3.","C. Chi\u1ebfu \u00e1nh s\u00e1ng tr\u1eafng qua t\u1ea5m l\u1ecdc m\u00e0u v\u00e0ng ta thu \u0111\u01b0\u1ee3c \u00e1nh s\u00e1ng tr\u1eafng.","D. C\u00e1c \u0111\u00e8n LED ph\u00e1t ra \u00e1nh s\u00e1ng tr\u1eafng."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":3624},{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Ch\u1ecdn c\u00e2u tr\u1ea3 l\u1eddi sai: C\u00e1c ngu\u1ed3n ph\u00e1t \u00e1nh s\u00e1ng m\u00e0u l\u00e0 ","select":["A. \u0111\u00e8n LED.","B. \u0111\u00e8n \u1ed1ng d\u00f9ng trong trang tr\u00ed, qu\u1ea3ng c\u00e1o.","C. \u0111\u00e8n \u0111\u1ecf \u1edf c\u00e1c c\u1ed9t t\u00edn hi\u1ec7u giao th\u00f4ng.","D. \u0111\u00e8n c\u00f3 d\u00e2y t\u00f3c nh\u01b0 \u0111\u00e8n pha"],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":3625},{"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":"Ngu\u1ed3n s\u00e1ng n\u00e0o sau \u0111\u00e2y kh\u00f4ng ph\u00e1t ra \u00e1nh s\u00e1ng tr\u1eafng? ","select":["A. H\u1ed3 quang \u0111i\u1ec7n (h\u00e0n \u0111i\u1ec7n).","B. \u0110\u00e8n xe g\u1eafn m\u00e1y.","C. Ngu\u1ed3n ph\u00e1t tia laze.","D. \u0110\u00e8n \u0111i\u1ec7n d\u00e2y t\u00f3c."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":3626},{"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 l\u1ea7n l\u01b0\u1ee3t m\u1ed9t ch\u00f9m \u00e1nh s\u00e1ng tr\u1eafng v\u00e0 m\u1ed9t ch\u00f9m \u00e1nh s\u00e1ng m\u00e0u xanh qua m\u1ed9t t\u1ea5m l\u1ecdc m\u00e0u xanh. C\u00e1c ch\u00f9m \u00e1nh s\u00e1ng \u0111i qua t\u1ea5m l\u1ecdc c\u00f3 m\u00e0u ","select":["A. tr\u1eafng.","B. \u0111\u1ecf.","C. xanh.","D. v\u00e0ng."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":3627},{"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":"D\u00f9ng m\u1ed9t b\u1ec3 n\u01b0\u1edbc nh\u1ecf c\u00f3 c\u00e1c th\u00e0nh b\u00ean trong su\u1ed1t \u0111\u1ef1ng n\u01b0\u1edbc c\u00f3 pha m\u1ef1c \u0111\u1ecf, sau \u0111\u00f3 d\u00f9ng \u0111\u00e8n pin chi\u1ebfu m\u1ed9t ch\u00f9m \u00e1nh s\u00e1ng xuy\u00ean qua hai th\u00e0nh \u0111\u1ed1i di\u1ec7n c\u1ee7a b\u1ec3 n\u01b0\u1edbc th\u00ec \u00e1nh s\u00e1ng xuy\u00ean qua b\u1ec3 n\u01b0\u1edbc c\u00f3 m\u00e0u ","select":["A. tr\u1eafng.","B. \u0111\u1ecf.","C. v\u00e0ng.","D. xanh."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":3628},{"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":"T\u1ea5m l\u1ecdc m\u00e0u c\u00f3 c\u00f4ng d\u1ee5ng ","select":["A. ch\u1ecdn m\u00e0u \u00e1nh s\u00e1ng truy\u1ec1n qua tr\u00f9ng v\u1edbi m\u00e0u t\u1ea5m l\u1ecdc.","B. tr\u1ed9n m\u00e0u \u00e1nh s\u00e1ng truy\u1ec1n qua.","C. gi\u1eef nguy\u00ean m\u00e0u \u00e1nh s\u00e1ng truy\u1ec1n qua.","D. a\u0301nh s\u00e1ng truy\u1ec1n qua chuy\u1ec3n sang m\u00e0u s\u00e1ng h\u01a1n."],"hint":"","explain":"<span class='basic_left'><br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":3629},{"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":"Ch\u1ecdn ph\u00e1t bi\u1ec3u \u0111\u00fang ","select":["A. C\u00f3 th\u1ec3 t\u1ea1o \u00e1nh s\u00e1ng v\u00e0ng b\u1eb1ng c\u00e1ch chi\u1ebfu \u00e1nh s\u00e1ng tr\u1eafng qua m\u1ed9t t\u1ea5m l\u1ecdc m\u00e0u v\u00e0ng ","B. B\u00fat Laze khi ho\u1ea1t \u0111\u1ed9ng th\u00ec ph\u00e1t ra \u00e1nh s\u00e1ng xanh ","C. \u00c1nh s\u00e1ng do \u0111\u00e8n pha \u00f4t\u00f4 ph\u00e1t ra l\u00e0 \u00e1nh s\u00e1ng v\u00e0ng ","D. B\u1ea5t k\u1ef3 ngu\u1ed3n s\u00e1ng n\u00e0o c\u0169ng ph\u00e1t ra \u00e1nh s\u00e1ng tr\u1eafng "],"hint":"","explain":"<span class='basic_left'>A - \u0111\u00fang <br\/>B - sai v\u00ec \u0111\u00e8n Laze c\u00f3 nhi\u1ec1u lo\u1ea1i m\u00e0u kh\u00e1c nhau : \u0111\u1ecf , xanh , . . <br\/>C - sai v\u00ec \u00e1nh s\u00e1ng do \u0111\u00e8n pha \u00f4 t\u00f4 ph\u00e1t ra l\u00e0 \u00e1nh s\u00e1ng tr\u1eafng <br\/>D - sai v\u00ec : ch\u1ec9 c\u00f3 c\u00e1c ngu\u1ed3n \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi ( tr\u1eeb l\u00fac b\u00ecnh minh v\u00e0 ho\u00e0ng h\u00f4n ) v\u00e0 \u0111\u00e8n d\u00e2y t\u00f3c n\u00f3ng s\u00e1ng ( \u0111\u00e8n pin , \u0111\u00e8n pha \u00f4 t\u00f4 . . . ) ph\u00e1t ra \u00e1nh s\u00e1ng tr\u1eafng<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":3630}],"lesson":{"save":0,"level":2}}