Download Aptitude Crack
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Communication Systems - Engineering

Q1:

An amplitude modulated wave is
e = 50 (1 + 0.4 cos 1000 t + 0.3 cos 10000 t) cos 107 t

A 0.5

B 0.3

C 0.7

D 0.4

ANS:A - 0.5

Please explain the answer.