Question
Easy
Solving time: 2 mins
Choose the correct statement:
(a) In amplitude modulation, the amplitude of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
(b) In amplitude modulation, the frequency of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
(c) In frequency modulation, the amplitude of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
(d) In frequency modulation, the amplitude of the high frequency carrier wave is made to vary in proportion to the frequency of the audio signal.
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Text solutionVerified
Exp. (b)
As, we know, an amplitude modulated wave, the bandwidth is twice the frequency of modulating signal. Therefore, amplitude modulation (AM), the frequency of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
As, we know, an amplitude modulated wave, the bandwidth is twice the frequency of modulating signal. Therefore, amplitude modulation (AM), the frequency of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
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Question Text | Choose the correct statement: (a) In amplitude modulation, the amplitude of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal. (b) In amplitude modulation, the frequency of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal. (c) In frequency modulation, the amplitude of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal. (d) In frequency modulation, the amplitude of the high frequency carrier wave is made to vary in proportion to the frequency of the audio signal. |
Topic | Semiconductor Electronics: Materials, Devices and Simple Circuits |
Subject | Physics |
Class | Class 12 |
Answer Type | Text solution:1 |
Upvotes | 8 |