Communication Systems - JEE Mains [ Question 7. ]

1.

In an amplitude modulator circuit, the carrier wave is given by C(t) = 4sin( 20000πt ) while modulating signal is given by, m(t) = 2sin( 2000πt ). The values of modulation index and lower side band frequency are

0.5 and 10 kHz

0.4 and 10 kHz

0.3 and 9 kHz

0.5 and 9 kHz

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 [JEE Main 2019, 12 April Shift-II]

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