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We consider the radiation emitted by the...

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 duuring the winters.

Text Solution

Verified by Experts

The correct Answer is:
B
Depends on the magnitude of frequency
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DISHA PUBLICATION-ELECTROMAGNETIC WAVES-Exercise - 1 : Concept Builder (Topicwise)(Topic 2 : Electromagnetic Spectrum)
  1. Light of an electromagnetic radiation has an energy 2.06 eV each. To w...

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  2. Which rays are not the portion of electro-magnetic spectrum?

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  3. The range of wavelength of the visible light is

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  4. Which of the following are not electromagnetic waves?

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  5. The electromagnetic radiation used in food processing sterilizing agen...

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  6. Microwaves are detected by

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  7. Radio waves with frequencies higher than television signals are

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  8. Which of the following electromagnetic waves have the longest waveleng...

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  9. Radio waves do not penetrate in the bond of

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  10. A radar sends the waves towards a distant object and receives the sign...

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  11. A man can take pictures of those objects which are not fully visible t...

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  12. The basic source of electromagnetic radiation is an accelerated :

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  13. The ozone layer convert the ultraviolet radiation to [which is used to...

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  14. Radio waves and visible light in vacuum have

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  15. Which of the following waves have the maximum wavelength?

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  16. The ozone layer absorbs radiation of wavelengths

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  17. The structure of solids is invested by using

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  18. We consider the radiation emitted by the human body. Which of the foll...

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  19. Photons of an electromagnetic radiation has an energy 11 keV each. To ...

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  20. If V(g),V(x) and V(m) are the speeds of gamma rays, x-rays and microwa...

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