Question

The Doppler shift was first tested in 1845 by the French scientist B. Ballot. He had a trumpet player sound a 422 Hz note while riding on a flat-car pulled by a locomotive. At the same time, a stationary trumpeter played the same note. Ballot heard 3 beats/s. How fast was the train moving toward him? The speed of sound in air is 343 m/s. Answer in units of m/s.

Answer 1

#Hi, if you are happy and find this useful please thumbs up. In case, if you have any query regarding the solution please let me know in the comments section below. Thanks!!