The whistle in a factory emits sound with a frequency of 1800 Hz. What is the apparent frequency of the sound to a listener in a car traveling at a speed of 10 m/s towards the factory ?
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when the car travelling 10m\s the frequency is 1500HZ
amagoharold:
Thanks for the answer Sir
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f'=f/(1+ vs/v)
= 1800(1+ 1/10)
=1800(11/10)
=180(11)
=1980.
Thanks for the answer Sir .
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