The frequency of a car horm is f what frequency is observed is both the car and the observer are at rest, but a wind is blowing from the car toward the observer?

A car sounding a horn of frequency 1000 Hz passes an observer. The ratio of frequencies of the horn noted by the observer before and after passing of the car is 11 : 9. If the speed of sound is v , the speed of the car is

A car moves towards a hill with speed Vc It blows a horn of frequency f which is heard by an observer following the car with speed Vo The speed of sound in air is V. Find the frequency heard by the observer

The frequency of the sound of a car horn as recorded by an observer towards whom the car is moving differs from the frequency of the horn by 10% . Assuming the velocity of sound in air to be 330ms^(-1) , the velocity of the car is

An isotropic stationary source is emitting waves of frequency n and wind is blowing due north. An observer A is on north of the source while observer B is on south the source. IF both the observers are stationary, then

An isotropic stationary source is emitting waves of frequency n and wind is blowing due north. An observer A is on north of the source while observer B is on south the source. IF both the observers are stationary, then

A car moves towards a hill with speed v_(c) .It blows a horn of frequency f which is heard by an observer following the car with speed s .The speed of sound in air is v . find frequency heard by the observer.

An engine is moving on a circular path of radius 200 m with a speed of 15 m/s. What will be the frequency observed by an observer standing at rest, at the centre of the circular path, when the engine blows a whistle of frequency 250 Hz?

A car moving at a speed of 72km/hr sounds its whistle which has a frequency of 550Hz, Find the frequencies heard by a stationary observer as the car approaches and then recedes from the observer, velocity of sound =340m/s.