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MHT CET202618 April 2026Morning ShiftPhysicsWaves and SoundActual

The number of waves counted by an observer on the sea-coast in one minute is 54. If the wavelength of the waves is 5 m then the velocity of the waves in m/s will be

Options

  1. A4.5
  2. B5.4
  3. C6.3
  4. D7.2

Correct answer

A. 4.5

Step-by-step solution

Frequency of the waves is given by the number of waves passing per second. f = 54 60 = 0.9 Hz Wavelength of the waves, = 5 m Velocity of the waves, v = f v = 0.9 5 = 4.5 m/s Answer: 4.5

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