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Out of the following the radiation with...

Out of the following the radiation with lowest frequency is

A

Visible light

B

X - rays

C

Microwaves

D

Ultraviolet rays

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The correct Answer is:
C
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NIKITA PUBLICATION-COMMUNICATION SYSTEMS-Multiple Choice Questions (Space communication )
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  4. Height of troposphere from ground surface is …… km.

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  8. The EM waves when travel into different medium gets

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  9. Ultraviolet radiations is absorbed by:

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  10. Speed of electromagnetic waves is given

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  11. In space communication, the sound waves can be sent from one place t...

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  12. A.F.M. radio transmitter uses a tower of height 60 m for its antenna W...

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  13. The electromagnetic waves of frequency 2 MHz and 30 MHz are

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  14. Ground wave propagation is suitable for

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  15. Long distance short-wave radio broadcasting uses

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  16. When microwave signals follow the curvature of earth, this is known as...

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

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  18. In space communcation , the information can be passed from on place ...

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  19. What will be the area of reception of the signals transmitted by the T...

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  20. The sky wave propagation is suitable for radiowaves of frequency

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