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In space communication, the sound waves...

In space communication, the sound waves can be sent from one place to another

A

through space

B

through wires

C

by superimposing it on undamped electromagnetic waves

D

by superimposing it on damped electromagnetic waves.

Text Solution

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The correct Answer is:
C
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NIKITA PUBLICATION-COMMUNICATION SYSTEMS-Multiple Choice Questions (Space communication )
  1. Ultraviolet radiations is absorbed by:

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  2. Speed of electromagnetic waves is given

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

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

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

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  6. Ground wave propagation is suitable for

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  7. Long distance short-wave radio broadcasting uses

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

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

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

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

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

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  13. The polarisation of an electromagnetic wave is determined by

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  14. Frequencies in the UHF range normally propagate by means of:

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  15. An antenna is a device

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  16. The frequency of signals up to 1.5 MHz can be propagated using

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  17. Space wave propagation is used in (a) microwave communication (b) ...

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  18. The Ionosphere reflects the

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  19. Which of the following is not a transmission media used in communicat...

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  20. In which frequency range, space waves are normally propagated?

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