MHT CET 2024 Physics question
A train sounding a whistle of frequency 510 Hz approaches a station 72 km/hr. The frequency of the note heard by an observer on platform as the train (1) approaches the station and then (2) recent the station are respectively (In hertz) (velocity of sound in air = 320 m/s)
Answer: (A)
Solution
The train speed is m/s and the speed of sound is m/s. For a source approaching a stationary observer, Hz. After the train passes and recedes, $ = f =
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account