The velocity of sound is 340 m / s . A source of sound having frequency of 90 Hz is moving towards a stationary observer with a speed of one-tenth that of sound. The apparent frequency of sound as hea

Question

The velocity of sound is 340 m / s . A source of sound having frequency of 90 Hz is moving towards a stationary observer with a speed of one-tenth that of sound. The apparent frequency of sound as heard by the observer is

TestHub · Accepted Answer

Apparent frequency of sound heard by the observer is: f = f 0 ​ ( v − v s ​ v ​ ) Where, v = 340 m / s is the speed of sound \& v s ​ = v /10 is the speed of the source morning towards the observer. ∴ f = 90 ( v − 10 v ​ v ​ ) Hz = 90 ( 9 10 ​ ) Hz = 100 Hz

Physics - Sound Wave Question with Solution | TestHub

Options:

Doubts & Discussion