27 A source of sound is moving towards a high wall with a

Last updated: 6/5/2023

27 A source of sound is moving towards a high wall with a speed of 25 m s A person moving away from the source and towards the wall with a velocity 5ms hears 5 beats sec The frequency of the sound produced by the source is velocity of sound 300 ms 1 a 250 Hz c 150 Hz b 300 Hz d 100 Hz