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Television signal on earth cannot be rec...

Television signal on earth cannot be recevied at distances greater than `100 km` from the transmission station. The reasion behind this is that

A

the receiver antenna is unable to detect the signal at a distance greater then 100 km

B

the TV programme consists of both audio and video signals

C

The TV signals are less powerful than radio signals.

D

the surface of earth is curved like a sphere

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The correct Answer is:
D
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RESONANCE-COMMUNICATION SYSTEMS-Exercise 2
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  9. Through which mode of propagation, the radio waves can be sent from on...

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  10. For television broadcasting, the frequency employed is normally

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  11. The ratio waves of frequency 300 MHz to 3000 MHz belong to

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  12. An antenna behaves as resonant circuit only when its length is

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

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  14. An oscillator is producing FM waves of requency 2kHz with a variation ...

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  15. The phenomenon by which light travels in an optical fibres is

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  16. Television signal on earth cannot be recevied at distances greater th...

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  17. Advantage of optical fibre

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  18. Both amplitude modulation (AM) and frequency modulation (FM) are used ...

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  19. Both amplitude modulation (AM) and frequency modulation (FM) are used ...

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  20. Both amplitude modulation (AM) and frequency modulation (FM) are used ...

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