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Physics of Sound

  1. ​In a sinusoidal wave, the time required for a particular point to move from maximum displacement to zero displacement is 0.170 sec. The frequency of the wave is
    1. 1.47 Hz
    2. 0.36 Hz
    3. 0.73 Hz
    4. 2.94 Hz
Correct Option: A

Time taken to move from maximum to zero displacement = T/4
∴ Time period T = 4 × 0.170 second

∴ Frequency, n =
1
=
1
= 1.47 Hz
T4 × 0.170



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