JEE PHYSICS MCQ: COMMUNICATION SYSTEMS

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Application +4 | -1

A sinusoidal wave

y\left( t \right) = 40\sin \left( {10 \times {{10}^6}\,\,\pi t} \right)

is amplitude modulated by another sinusoidal wave

x\left( t \right) = 20\sin \left( {1000\,\pi t} \right).

The amplitude of minimum frequency component of modulated signal is:

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Correct option: D

Option D (10) is correct because it identifies the minimum frequency component of the modulated signal and its corresponding amplitude after expanding the expression.

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