Download Aptitude Crack
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Signals and Systems - Engineering

Q1:

The analog signal m(t) is given below m(t) = 4 cos 100 pt + 8 sin 200 pt + cos 300 pt, the Nyquist sampling rate will be

A 1/100

B 1/200

C 1/300

D 1/600

ANS:C - 1/300

m (t) = 4 cos 100 pt + 8 sin 200 pt + cos 300 pt Nyquist sampling freq fs ≤ 2fm where fm is highest frequency component in given signal and highest fm in 3rd part 2pfmt = 300 pt fm = 150 Hz fs = 2 x 150 p 300 Hz .