Question

A source of sound emitting a note of frequency 200 Hz moves towards an observer with a speed v equal to the speed of sound. If the observer also moves away from the source with the same speed v, the apparent frequency heard by the observer is

Solution

Correct option is

200 Hz

The relative speed of the observer with respect to the source of sound is zero. Hence there is no change in frequency.

SIMILAR QUESTIONS

Q1

A mass m is suspended from a spring of negligible mass. The system oscillates with frequency n. What will be the frequency if a mass 4 m is suspended from the same spring?

Q2

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Q3

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Q4

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Q5

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Q6

 

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Q7

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Q8

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Q9

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Q10

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