An amplitude modulated signal is given by

PHYSICS · Single correct · A Level · Physics · Electronics · Electronics

Problem

An amplitude modulated signal is given by V(t)=10[1+0.3cos⁡(2.2×104t)]sin⁡(5.5×105t)V(t) = 10[1 + 0.3 \cos (2.2 \times 10^4 t)] \sin(5.5 \times 10^5 t). Here tt is in seconds. The sideband frequencies (in kHz) are: (1) 1785 and 1715 (2) 178.5 and 171.5 (3) 89.25 and 85.75 (4) 892.5 and 857.5

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