Electromagnetic Waves - Result Question 26

26. We consider the radiation emitted by the human body. Which of the following statements is true? [2003]

(a) the radiation emitted lies in the ultraviolet region and hence is not visible.

(b) the radiation emitted is in the infra-red region.

(c) the radiation is emitted only during the day.

(d) the radiation is emitted during the summers and absorbed during the winters.

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Solution:

  1. (b) Depends on the magnitude of frequency