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MHT CET 2024 (10 May, Shift 2) · Wave Basics & Properties of Sound

Wave Basics & Properties of Sound question from MHT CET 2024 (10 May, Shift 2)

Q15MHT CET 2024 · 10 MAY · SHIFT 2Easy

Wave Basics & Properties of Sound

Prong of a vibrating tuning fork is in contact with water surface. It produces concentric circular waves on the surface of water. The distance between five consecutive crests is 0.8 m and the velocity of wave on the water surface is $56\text{ m/s}$ . The frequency of tuning fork is

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Answer: (b)

Five consecutive crests have four gaps: $4\lambda = 0.8$ m, so $\lambda = 0.2$ m.
$n = \frac{v}{\lambda} = \frac{56}{0.2} = 280$ Hz
So the answer is (b) 280 Hz.

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