Fundamentholfundamenthol
JEE Main2019Physics
Q.

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

  1. A

    0.5 and 10 kHz 

  2. B

    0.3 and 9 kHz 

  3. C

    0.4 and 10 kHz

  4. D

    0.5 and 9 kHz

Solution

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