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Có thể nhận biết tia hồng ngoại bằng A. màn huỳnh quang B. quang phổ kế C. mắt người. D. pin nhiệt điện. Đáp án và lời giải Đáp án:D

Câu hỏi thuộc đề thi sau. Bạn có muốn thi thử?

Bài tập trắc nghiệm 15 phút Tia hồng ngoại và tia tử ngoại - Vật Lý 12 - Đề số 2

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Một số câu hỏi khác cùng bài thi.

• Thân nhiệt của người bình thường có thể phát ra được bức xạ nào dưới đây ?

• Khi so sánh tia hồng ngoại và tia tử ngoại, phát biểu nào sau đây là đúng?        

• Có thể nhận biết tia hồng ngoại bằng

• Bức xạ có bước sóng trong khoảng từ  m đến  m thuộc loại nào trong các sóng nêu dưới đây:  

• Bức xạ hồng ngoại là bức xạ có

• Bức xạ có bước sóng trong khoảng từ 10-9m đến 3,8. 10-7m thuộc loại nào trong các bức xạ dưới đây?
• Có thể nhận biết tia hồng ngoại bằng

• Tia Rơn-ghen (tia X) có:          .  

• Với ɛ1, ɛ2 và ɛ3 lần lượt là năng lượng của phô tôn ứng với các bức xạ màu vàng, bức xạ tử ngoại và bức xạ hồng ngoại thì
• Bức xạ có bước sóng = 0,6m

Một số câu hỏi khác có thể bạn quan tâm.

• I___________ Lan since she went abroad.

• Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase for each of the numbered blanks from 11 to 15. TREES FOR LIFE

  Trees are among the biggest and longest-living things on Earth, some dating back longer than the oldest buildings. But (11)_______ being nice to look at, trees also play an important role in improving the quality of our lives.

  On a world-wide (12)_______, forests help to slow down the effects of global warming by using up the gas known as carbon dioxide and giving (13)_______ the oxygen we need to breathe. At local neighborhood level, trees also (14)_______ important environment benefits. They offer shade and shelter, which in (15)_______ reduces the amount of energy needed to heat and cool nearby buildings; at the same time, they also remove other impurities from the air we breathe.

  using up the gasknown as carbon dioxide and giving (13)_______ the oxygen we need to breathe.

• Failing to submit the proposal on time was _____   for Tom.

• Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase for each of the numbered blanks from 11 to 15. TREES FOR LIFE

  Trees are among the biggest and longest-living things on Earth, some dating back longer than the oldest buildings. But (11)_______ being nice to look at, trees also play an important role in improving the quality of our lives.

  On a world-wide (12)_______, forests help to slow down the effects of global warming by using up the gas known as carbon dioxide and giving (13)_______ the oxygen we need to breathe. At local neighborhood level, trees also (14)_______ important environment benefits. They offer shade and shelter, which in (15)_______ reduces the amount of energy needed to heat and cool nearby buildings; at the same time, they also remove other impurities from the air we breathe.

  At local neighborhood level, trees also (14)_______ important environment benefits.

• It is of great importance to create a good impression ______     your interviewer.

• Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase for each of the numbered blanks from 11 to 15. TREES FOR LIFE

  Trees are among the biggest and longest-living things on Earth, some dating back longer than the oldest buildings. But (11)_______ being nice to look at, trees also play an important role in improving the quality of our lives.

  On a world-wide (12)_______, forests help to slow down the effects of global warming by using up the gas known as carbon dioxide and giving (13)_______ the oxygen we need to breathe. At local neighborhood level, trees also (14)_______ important environment benefits. They offer shade and shelter, which in (15)_______ reduces the amount of energy needed to heat and cool nearby buildings; at the same time, they also remove other impurities from the air we breathe.

  They offer shade and shelter, which in (15)_______ reduces the amount of energy needed to heat and cool nearby buildings;

• She likes meeting people and travelling so she wants to apply for a ___  of a receptionist or tourist guide.

• Time was up, and the judges___________ the results.

• Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks

  An important point to remember if you like spending time out in the open air is that the human head doesn‟t work very well outdoors if it becomes too hot, cold or wet. That‟s why a hat is a good investment, whenever you are planning to go out and about. Surprisingly, a single waterproof hat with a brim will do the (16)______ adequately in most conditions.

  In cold climates, the problem is that the head is (17)______ heat all the time. As much as fifty to sixty per cent of your body‟s heat is lost through the head and neck, (18)______ on which scientist you believe. Clearly this heat loss needs to be prevented, but it‟s important to remember that hats don‟t actually keep you warm, they simply stop heat escaping.

  Just as important is the need to protect your neck from the effects of bright sunlight, and the brim of your hat will do this. If you prefer a baseball cap, (19)______ buying one that has a drop down „tail‟ at the back to stop your neck getting sunburnt.

  And in wet weather (20)______, hats are often more practical than pooling up the hood of your waterproof coat because when you turn your head, the hat goes with you, whereas the hood usually does not.

  Surprisingly, a single waterproof hat with a brim will do the (16)______ adequately in most conditions.

• The winner of the contest was given a(n) ________         for her excellent performance.

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