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A plane progressive wave is given by y = 2 2 (330t - x) m. The frequency of the wave is :
(3) 330 Hz
Standard form: y = A ( t - kx) = A (2 f t - kx)
Given: y = 2 (2 330 t - 2 x)
= 2 f = 2 330
f = 330 Hz
Answer: (3)
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