39 An engine is moving on a circular path of radius 100

Last updated: 6/25/2023

39 An engine is moving on a circular path of radius 100 metre with a speed of 20 metre per second The frequency observed by an observer standing stationary at the centre of circular path when the engine blows a whistle of frequency 500 Hz is 1 more than 500 Hz 3 500 Hz 2 less than 500 Hz 4 no sound is heard 7 1 13 3 19 4 25 2 31 1 37 4 43 2