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For navigation in sea, …. waves are usef...

For navigation in sea, …. waves are useful.

A

radio

B

infrared

C

UV

D

microwave

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The correct Answer is:
D
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KUMAR PRAKASHAN-ELECTROMAGNETIC WAVES-SECTION D MULTIPLE CHOICE QUESTIONS (MCQs)
  1. Crystalline structures can be studied using …. .

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  2. In vacuum, X - rays, Gamma rays and Microwave have …. .

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  3. For navigation in sea, …. waves are useful.

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  4. …. radiation is emitted by hot bodies.

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  5. In microwave oven, if frequency of rotation of water molecules is v(1)...

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  6. Given the frequency of microwave used by microwave oven to cook food.

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  7. ….. are used in the interceptor van used by traffic police.

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  8. ….. can be used to cook the food.

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  9. …. Lamp is used in physiotherapy treatement.

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  10. When skin gets exposed UV radiation for a long time, it develops …..

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  11. Which of following is CFC gas ?

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  12. Cracks in bones can be detected using ………

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  13. ….. are used to kill cancerous cells.

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  14. In communication system and RADAR microwave are used, because …….

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  15. Ozone layer absorbs …..

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  16. The wavelength less than …… Å almost all the electromagnetic waves are...

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  17. Wavelengths of some electromagnetic waves are given below. Arrange the...

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  18. Wavelength of infrared waves is …..

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  19. The wavelength 5890 Å and 5896 Å of sodium doublet correspond to …. re...

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  20. In electromagnetic spectrum ……… the light has lowest wavelength.

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