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In amplitude modulation...

In amplitude modulation

A

only the amplitude is changed but frequency remains same

B

both the amplitude and frequency shcange equally

C

both the amplitude and frequency change unequally

D

none of the above

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The correct Answer is:
A
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NIKITA PUBLICATION-COMMUNICATION SYSTEMS-Multiple Choice Questions (Production and detection of amplitude modulated wave)
  1. Draw backs of Amplitude modulation

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

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  3. Amplitude modulation is useful for broadcasting in communication syste...

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  4. The maximum peak ro peak voltage of an AM wire is 24 mV and the minimu...

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  5. Sinusoidal carrier voltage of frequency 1.5 MHz and amplitude 50V is a...

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  6. What is the modulation index of an over modulated wave

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  7. What type of modulation is employed in india for radio transmission

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  8. If audio signal is tranmitted directly into space, the length of the t...

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  9. In amplitude modulation

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  10. Modulation factor determines-

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  11. Degree of modulation-

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  12. The AM wave is equivalent to the summation of

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  13. The AM wave contans three frequencies viz:

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  14. In AM waves, the amplitude of each side band frequency is

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  15. Which of the following is/are the limitations of amplitude modulation?

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  16. The process of recovering the audio signal from the modulated wave is ...

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  17. The frequency above which radiation of electrical energy is practical ...

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  18. What is the band width in amplitude modulation ?

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  19. For a carrier frequency of 100 kHz and a modulating frequency of 5kHz ...

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  20. The carrier frequency generated by a tank circuit containing 1 nF capa...

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