An engine is moving on a circular path of radius 100 m with a speed of 20 m/s. What will be frequency noted by an observer standing stationary at the centre of the circular path when the engine blows a whistle of frequency 500 Hz ?

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?

An engine is moving on a circular track with a constant speed. It is blowing a whistle of frequency 500 Hz . The frequency received by an observer standing stationary at the centre of the track is

An observer is moving on a circular path of radius r with speed V_(0) around source kept at centre. The apparent frequency observed by observer is (n is actual frequency)

A car is moving in a circular path of radius 500m with a speed of 30 m//s . If the speed is increased at the rate of 2 m//s^(2) , the resultant acceleration will be .

A car moves a circular path of radius 20 m in 50 s with a uniform speed. Find the speed.

.A source is moving with a constant speed of "10m/s" on a circular track of "200m" .It emits a sound of frequency "200Hz" .A listener stands at the centre of the circular track.The frequency recieved by the listener is (velocity of sound "=340m/s" ) 1) zero 2)200Hz 3)190Hz 4) 210Hz

An aeroplane is flying with a uniform speed of 100 m/s along a circular path of radius 100 m . the angular speed of the aeroplane will be