An ambhulance blowing a siren of frequency 700Hz is travelling slowly towards vertical reflectoing wall with a speed 2m/s. The speed of sound is 350m/s. How many beats ar heard per sec to the driver of het ambluance?

An ambulance blowing a siren of frequency 700 Hz is moving with a speed of 2m/s towards a vertical wall. The speed of sound is 352 m/s. Then the frequency of the reflected sound as heard by the driver of ambulance would be

An ambulance blowing a siren of frequency 700 Hz is travelling towards a wall with a speed 2 m(s)^-1.Calculate the number of beats heard in one second by the driver of the ambulance.(velocity of sound = 350 m(s)^-1 )

A car, sounding a horn of frequency 1000 Hz, is moving directly towards a huge wall at a speed of 15 m/s. If speed of sound is 340 m/s, then the frequency of the echo heard by the driver is

A car with a hom of frequency 620 Hz travels towards a large wall with a speed of 20 m//s . velocity of sound is 330 m//s . The frequency of echo of sound of hom as heard by the driver is

A source of sound of frequency 500 Hz is moving towards an observer with velocity 30 m/s . The speed of sound is 330 m/s . the frequency heard by the observer will be

A source of sound of frequency 500 Hz is moving towards an observer with velocity 30 m/s . The speed of sound is 330 m/s . the frequency heard by the observer will be