waves

Question: An observer standing at station observes frequency 219 Hz when a train approaches and 184 Hz when train goes away from him. If velocity of sound in air is 340 m/s, then velocity of train and actual frequency of whistle will be

1) $15.5\,m{{s}^{-1}},\ 200\,Hz$

2) $19.5\,m{{s}^{-1}},\ 205\,Hz$

3) $29.5\,m{{s}^{-1}},\ 200\,Hz$

4) $32.5\,m{{s}^{-1}},\ 205\,Hz$

Solution:

Explanation: No Explanation

Doppler Effect

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