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.

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

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 n is moving towards a stationary observer with a speed S. If the speed of sound in air is V and the frequency heard by the observer is n_(1) ,the value of n_(1)//n is

The source of sound generating a frequency of 3 kH z reaches an observer with a speed of 0.5 times the velocity of sound in air. The frequency heard by the observer is

A source of sound of frequency 90 vibrations/ sec is approaching a stationary observer with a speed equal to 1/10 the speed of sound. What will be the frequency heard by the observer

A source is moving towards an observer with a speed of 20 m / s and having frequency of 240 Hz . The observer is now moving towards the source with a speed of 20 m / s . Apparent frequency heard by observer, if velocity of sound is 340 m / s , is

A band playing music at a frequency f is moving towards a wall at a speed v_(b) . A motorist is following the band with a speed v_(m) . If the speed of sound, obtain an expression for the beat frequency heard by the motorist.