A whistle emitting a sound of frequency 300 Hz is tied to a string of 2 m length and is rotated with an angular velocity of 15 rad/s in the horizontal plane. Find the range of frequencies heard by the observer stationed at a large distance from the whistle.[Given, velocity of sound in air =330 m/s. Assume, medium is stationary and also that the observer and the source are on the same horizontal plane.]

A whistle emitting a sound of frequency 300 Hz is tied to a string of

1.	A whistle emitting a sound of frequency 300 Hz is tied to a string of 2 m length and is rotated with an angular velocity of 15 rad/s in the horizontal plane. Find the range of frequencies heard by the observer stationed at a large distance from the whistle.[Given, velocity of sound in air =330 m/s. Assume, medium is stationary and also that the observer and the source are on the same horizontal plane.]
Answer» A whistle emitting a sound of frequency $300 Hz$ is tied to a string of $2 m$ length and is rotated with an angular velocity of $15 rad/s$ in the horizontal plane. Find the range of frequencies heard by the observer stationed at a large distance from the whistle. [Given, velocity of sound in air $= 330 m/s$ . Assume, medium is stationary and also that the observer and the source are on the same horizontal plane.]