JEE · NEET Previous Year Question

A car is moving towards a high cliff. The driver sounds a of frequency f. The reflected sound heard by the driver has frequency . If is the velocity of sound, then the velocity of the car, in the same velocity units, will be

Topic: NEET PYQ

Answer: B. Full step-by-step solution below.

  1. A
  2. B
  3. C
  4. D

Correct answer: B

Solution

(b) 1st the car is the source and at the cliff, one observes

cliff is now source. It emits frequency and the observer is now the driver who observes
or

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