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MHT CET 2025 (21 Apr, Shift 1) · Wave Basics & Properties of Sound

Wave Basics & Properties of Sound question from MHT CET 2025 (21 Apr, Shift 1)

Q12MHT CET 2025 · 21 APR · SHIFT 1Easy

Wave Basics & Properties of Sound

An observer on sea-coast counts 45 waves in one minute. If the wavelength of the waves is 7 m, then the velocity of the waves will be

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Answer: (b)

  1. Frequency n=4560=0.75n = \frac{45}{60} = 0.75 Hz
  2. v=nλ=0.75×7=5.25v = n\lambda = 0.75 \times 7 = 5.25 m/s
  3. So the answer is (b) 5.255.25 m/s.
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