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In frequency modulation...

In frequency modulation

A

The amplitude of career wave varier according to the frequency of message signal

B

The frequency of career wave varies according to the amplitude of message signal

C

The frequency of career wave varies according to the frequency of message signal

D

The amplitude of career wave varies according to the amplitude of message signal

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The correct Answer is:
B
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Both amplitude modulation (AM) and frequency modulation (FM) are used for radio broadcasting. The amplitude of the high frequency carrier wave is varied or modulated in accordance with the variations in the amplitude of the audio signals that are to be transmitted, in te process of amplitude modulation in frequency modulation te amplitude of the carrier remains constant but its frequency is varied inn accordance withh the audio signal. Reception with AM signals is in general is affected by interference of various kinds ad elaborated equipment is required for FM broadcast. A radio frequency carrier wave can be modulated using a-

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Both amplitude modulation (AM) and frequency modulation (FM) are used for radio broadcasting. The amplitude of the high frequency carrier wave is varied or modulated in accordance with the variations in the amplitude of the audio signals that are to be transmitted, in te process of amplitude modulation in frequency modulation te amplitude of the carrier remains constant but its frequency is varied inn accordance withh the audio signal. Reception with AM signals is in general is affected by interference of various kinds ad elaborated equipment is required for FM broadcast. The rangeof a transmitter is

ALLEN-SEMICONDUCTORS-Part-3(Exercise-1)
  1. Long distance short-wave radio broadcasting uses

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  2. The power in a two-wire transmission line travels :-

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  3. For television broadcasting, the frequency employed is normally

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  4. The sound waves after being converted into electrical waves are not tr...

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  5. The process of superimposing signal frequency (i.e. audio wave) on the...

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  6. In an amplitude modulated wave for audio frequency of 500 "cycle"//sec...

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  7. If three wave no atmosphere, the average temperature on the surface of...

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  8. The T.V. transmission tower in Delhi has a height of 240 m. The distan...

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  9. Which of the following is used to produce radio waves of constant ampl...

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  10. The maximum distance upto which TV transmission from a TV tower of...

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  11. For sky wave propagation of a 10 MHz signal, what should be the minimu...

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  12. In short wave communication waves of which of the following frequeunci...

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  13. For sky wave propagation of a 10 MHz signal, what should be the minimu...

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  14. In frequency modulation

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  15. Range of frequencies allotted for commercial FM radio broadcast is

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  16. Sound produced by a tining fork is a sort of :-

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  17. The space waves which are affected seriously by atmospheric condition ...

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  18. Which of the following is not transducer?

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  19. A anetenna is of height 500 m. What will be its range (Radio of the ea...

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  20. In amplitude modulation determine the total maximum transmitted power,...

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