A travelling wave is given by y = 0.01 cos(6πx+30πt), where x and y are in metres and t in seconds. If the frequency is N Hz, find N.
Physics · Wave Motion · general equation of wave
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Question

A travelling wave is given by y = 0.01 cos(6πx+30πt), where x and y are in metres and t in seconds. If the frequency is N Hz, find N.

G1 Physics · Accepted Answer

Angular frequency is ω = 30π rad/s. Therefore, f = ω/(2π) = 30π/(2π) = 15 Hz. Hence, N = 15.