QJEEM21Ph9176: JEE Main 2021 Physics - Class 12 JEEM21Ph9176 Solution: An amplitude modulated wave is represented by C m (t) = 10(1 +…

Question

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An amplitude modulated wave is represented by
C_m(t) = 10(1 + 0.2 cos 12560t) sin(111

\times

10⁴t) volts. The modulating frequency in kHz will be ................. .

Accepted Answer

W_m = 12560 = 2

π

f_m

f_{m} = \frac{12560}{2 π}

= 2000 Hz

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