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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
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B
0.36 Hz
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C
0.73 Hz
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D
2.94 Hz
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Solution

The correct option is D 1.47 Hz
Time 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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