Question

The time period of continuous-time sinusoidal signal is given by _____

(a) T = 2π / w

(b) T = 2π / 3w

(c) T = π / w

(d) T = π / 2w

I have been asked this question in an online interview.

Query is from Elementary Signals in portion Signals and Systems Basics of Signals and Systems

Answer 1

The correct answer is (a) T = 2π / w

To explain: X (t) = A cos (wt+φ) is the continuous-time sinusoidal signal and its period is given by

T = 2π / w where w is the frequency in radians per second.