An acoustic engineer places a sound detector on a railway

Last updated: 6/14/2023

An acoustic engineer places a sound detector on a railway station A train approaching the platform at a speed of 10 m s sounds a whistle The detector detects 10 kHz as the most dominant frequency in the whistle If the train stops at platform and sounds the whistle then most dominant frequency detected will be nearly Vsound 340 m s 9 7 kHz 11 3 kHz 10 3 kHZ