Question

A train sounds its whistle as it approaches and
crosses a level-crossing. An observer at the
crossing measures a frequency of 219Hz as the
train approaches and a frequency of 184Hz as
it leaves. If the speed of sound is taken to be
340m/s, find the speed of the train and the
frequency of its whistle.​

Answer 1

Answer:

Answer (e) 200 Hz

hope will be helpful ☺️

Answer 2

Answer:

wait wait wait wait wait wait wait wait wait wait wait wait wait wait wait wait wait wait wait wait