Question

# In a sinusoidal wave, the time required for a particular point to move from maximum displacement to zero displacement is 0.17 sec. The frequency of the wave is :

A
1.47 Hz
B
0.36 Hz
C
0.73 Hz
D
2.94 Hz

Solution

## The correct option is D 1.47 HzTime required for a point to move from maximum displacement to zero displacement is $$t = \dfrac{T}{4} = \dfrac{1}{4n} \, \rho \ n = \dfrac{1}{4t} = \dfrac{1}{4 \times 0.170} = 1.47 Hz$$Physics

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