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MHT CET202012 Oct 2020Evening ShiftPhysicsWaves and SoundActual

A bus is moving with a velocity of 5 ~m / s towards a wall. The driver blows the horn of frequency 165 ~Hz . If the speed of sound in air is 335 ~m / s , then after reflection of sound wave, the number of beats per second heard by the passengers in the bus will be

Options

  1. A4
  2. B5
  3. C6
  4. D2

Correct answer

B. 5

Step-by-step solution

No Solution

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