IIT JEE Mains and Advanced PYQ: Wave Motion

A whistle emitting a sound of frequency 440 Hz is tied to a string of 1.5 m length and rotated with an angular velocity of 20 rad/s in the horizontal plane. Calculate the range of frequencies heard by an observer stationed at a large distance from the whistle. (Speed of sound = 330 m/s).
(1996)
IIT JEE Mains and Advanced PYQ: Wave Motion #neet #jeemain #jeeadvance