The driver of as car approaching a vertical wall notices that the frequency of his car's horn charges from 440 Hz to 480 Hz when it gets reflected from the wal. Find the speed of the car if that of the sound is `330 ms^-1`.

The driver of a bus approaching a big wall botices that the frequency of his bus's horn changes from 420 Hz to 490 Hz when he hears it after it gets reflected from the wall. Find the speed of the bus if speed of the sound is "330 ms"^(-1) .

The driver of a bus approaching a big wall botices that the frequency of his bus's horn changes from 420 Hz to 490 Hz when he hears it after it gets reflected from the wall. Find the speed of the bus if speed of the sound is "330 ms"^(-1) .

A driver in a car , approaching a vertical wall notices that the frequency of his car horn , has changed form 440 Hz to 480 Hz , when it gets reflected form the wall . If the speed of the sound in are 345 m/s , then the speed of the car is :

A driver in a car , approaching a vertical wall notices that the frequency of his car horn , has changed form 440 Hz to 480 Hz , when it gets reflected form the wall . If the speed of the sound in are 345 m/s , then the speed of the car is :

The driver of a car approaching a vertical wall notices that the frequency of the horn of his car changes from 400 Hz to 450 Hz after being reflected from the wall. Assuming speed of sound to be 340(m)/(s) , the speed of approach of car towards the wall is

The driver of a car approaching a vertical wall notices that the frequency of the horn of his car changes from 400 Hz to 450 Hz after being reflected from the wall. Assuming speed of sound to be 340(m)/(s) , the speed of approach of car towards the wall is

A frequency of the horn of a car drops from 280 Hz to 240 hz as the car passes a stationary observer.What is the speed of the car?[velocity of the sound in the air is 330 m(s)^-1].

The frequency of a car horn encountered a change from 400 Hz to 500 Hz. When the car approaches a vertical wall. If the speed of sound is 330 m/s. Then the speed of car is ______ km/h.

A car travelling at a speed of 54 km/hr towards a large wall horns a sound of frequency 400 Hz if the person stands behind the car such that the car receding from him approaches the wall the difference in frequencies of the two sounds one recieved directly from the car and the other reflected from the wall (speed of sound is 335 m/s)