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MHT CET202314 May 2023Evening ShiftPhysicsWaves and SoundActual

A source of sound is moving towards a stationary observer with ( 1 10 )^ th the of the speed of sound. The ratio of apparent to real frequency is

Options

  1. A10:9
  2. B11:10
  3. C(11)^2:(10)^2
  4. D(9)^2:(10)^2

Correct answer

A. 10:9

Step-by-step solution

For source of sound moving towards a stationary observer, the apparent frequency is given by, n = n ₀ v v - v _ S aligned & n n ₀ = v v - v 10 & n n ₀ = 10 9 aligned

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