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Which of the following is not an electro...

Which of the following is not an electromagnetic wave?

A

X - rays

B

UV rays

C

Sound waves

D

radio waves

Text Solution

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The correct Answer is:
C
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PRADEEP-COMMUNICATION SYSTEMS-Exercise
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  2. If v(r) is velocity of red light and v(b) is velocity of blue light in...

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  3. Which of the following is not an electromagnetic wave?

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  4. The height from the surface of earth and electron density of D layer o...

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  5. The wavelength range of SHF ( super high frequency) waves is

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  6. Ground wave propagation is not suited for

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  7. Sky wave propagation is also called

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  8. The correct relation between plasma frequency v of a radio wave and el...

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  9. Refractive index mu of a layer in sky wave propagation is given by

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  10. Line of sight propagation is

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  11. Minimum number of geostationary satellites needed for stallite communi...

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  12. Through which mode of propagation, the radio waves can be sent from on...

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  13. From which layer of the atmosphere,radio waves are reflected back?

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  14. The height of a TV tower is 180 m. To what distance the transmission c...

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  15. When the antenna is held parallel to horizontal surface of earth , the...

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  16. The gaseous envelope surrounding the earth is called ……….

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  17. F(2)- layer of eath's atmosphere is at a vertical height of about ………...

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  18. The electromagnetic wave is of frequency range from 5xx10^5 Hz to 10^...

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  19. The phenomenon of loss of power of a ground wave is called ……..

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  20. A mode of wave propagation is also known as ………

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