A body is vibrating 6000 times in 1 minute. If the velocity of sound in air is 360 m/s, find wavelength of sound in metre.

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Solution

No. of vibrations in 1 minute = 6000 No. of vibrations in 1s = 6000/60 =100 i.e Frequency = 100 Hz Wavelength of sound = Speed of sound / Frequency = 360/100 = 0.36 m

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