A plane progressive wave is given by y=2 cos 2π(330t-x)m. The frequency of the wave is [2024]
340 Hz
165 Hz
330 Hz
660 Hz
(C) y=2 cos 2π(330t-x)m
y=A cos (ωt-kx)
Comparing ω=2π×330
2πf=2π×330⇒f=330 Hz
