Doppler Effect of Sound Waves
 

Doppler Effect of Sound Waves problem 2


A train travels uniformly at a speed of 100 km/h. It emits a tone of 450 Hz with a siren. What frequency is heard by a stationary observer by the rail track before the train reaches him and when the train moves away from him? The speed of sound is 340 m/s.


 

material editor: Sunday Awolaja