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We consider the radiation emitted by the...

We consider the radiation emitted by the human body. Which one of the following statements is correct?

A

The radiation is emitted only during the day

B

The radiation is emitted during the summers and absorbed during the winters

C

The radiation emitted lies in the ultraviolet region and hence is not visible

D

The radiation emitted is in the infra-red region

Text Solution

Verified by Experts

The correct Answer is:
D
Wavelength of thermal radiations ranges from `7.8 xx 10^(-7)` m to `4 xx 10^(-4)m` (IR region).
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