Physics

Problem

An amplitude modulated signal is given by

V(t) = 10[1 + 0.3 \cos (2.2 \times 10^4 t)] \sin(5.5 \times 10^5 t)

. Here

t

is in seconds. The sideband frequencies (in kHz) are: a. 1785 and 1715 b. 178.5 and 171.5 c. 89.25 and 85.75 d. 892.5 and 857.5