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Q.

A source of sound of frequency 1000 Hz is moving towards a stationary wall with velocity 30 m/s and observer is also moving behind the source with the same velocity. If the frequency band width detected by the observer is K x102 . There find the value of k :

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Detailed Solution

f1=ffw=cC−30f=330300×1000Hzf2=C+v0Cfw=360330×330300×1000=1200Hz Frequency Band width=f2−f1=200Hz
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