The frequency of whistle of a train moving with 20 m/s appears as 500 Hz to a car driver moving with a velocity of 15 m/s. If the train and the car are moving in opposite directions towards each other, then the frequency of the whistle is (Consider velocity of sound in air = 335 m/s) - VgyanHub

Question:

The frequency of whistle of a train moving with 20 m/s appears as 500 Hz to a car driver moving with a velocity of 15 m/s. If the train and the car are moving in opposite directions towards each other, then the frequency of the whistle is (Consider velocity of sound in air = 335 m/s)

Options :

(a) 557.9 Hz
(b) 549.7 Hz
(c) 450.0Hz
(d) 443.6 Hz

Answer :

(c) 450.0Hz

Answer Steps :

step 1

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