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Question: Answered & Verified by Expert
We consider the radiation emitted by the human body. Which of the following statements is true ?
PhysicsWave OpticsMHT CETMHT CET 2007
Options:
  • A The radiation is emitted during the summers and absorbed during the winters
  • B The radiation emitted lies in the ultraviolet region and hence is not visible
  • C The radiation emitted is in the infrared region
  • D The radiation is emitted only during the day
Solution:
2461 Upvotes Verified Answer
The correct answer is: The radiation emitted is in the infrared region
The heat radiation emitted by the human body is the infrared radiation. Their wavelength is of the order of $7.9 \times 10^{-7} \mathrm{~m}$ to $10^{-3} \mathrm{~m}$ which is of cource the range of infrared region.

Hence, human body emits radiation in infrared region.

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