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MHT CET202613 April 2026Morning ShiftPhysicsWaves and SoundActual

Waves having a velocity 10m/s, strike a stationary boat near the sea shore. The distance between two consecutive crests of the waves is 40m. After how many second, the consecutive waves strike the boat?

Options

  1. A8 s
  2. B6 s
  3. C4 s
  4. D2 s

Correct answer

C. 4 s

Step-by-step solution

Given velocity of waves, v = 10 m/s. Distance between two consecutive crests is the wavelength, = 40 m. The time interval between consecutive waves striking the stationary boat is the time period T . Using the relation v = T , we get: T = v T = 40 10 = 4 s. Answer: 4 s

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