MCQOPTIONS
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| 1. |
We consider the radiation emitted by the human body. Which of the following statements is true? |
| 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. |
| Answer» C. the radiation is emitted only during the day. | |