A person is sitting 200m away from a 20 hertz sound source. What is the time interval at which successive compressions pulses from the source reach him.If the speed of sound is 340m/s.

A person is listening to a tone of 500 Hz sitting at a distance of 450 m from the source of the sound. What is the time interval between successive compressions from the source ?

An echo is returned in 3 s . What is the distance of the reflecting surface from the source, given that the speed of sound is 342 m//s .

(a) A person listens to a source of sound of frequency 350 Hz standing at a distance of 500 m . What is the time interval between successive rarefactions from the source ? (b) What is meant by the term lithotripsy ?

The sound level at a point 5-0 m away from a point source is 40 dB. What will be the level at a point 50 m away from the source ?

What would a person hear, if he moves away from a source of sound with the speed of sound?