Question

In a sinusoidal wave, the time required for a particular
point to move from maximum displacement to zero
displacement is 0.1s. The frequency of the wave is-
(A) 2.5 Hz (B) 0.36 Hz (C) 0.8 Hz (D) 4 Hz
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Answer 1

Answer:

answer is (A) =2.5Hz

Explanation:

Here the point covers (1/4)th distance . for cover this distance it needs 0.1secs. i. e(( t/4))=0.1sec.So time period is (0.1*4)=0.4. so frequency is 2.5Hz...