A whistle emitting a sound of frequency `440 h_(z)` is tied to a string of `1.5 m` length and roated with an angular velocity of `20 rad//s` in the horizontal plane. Calculate the range of frequencies heard by an observer stationed at a larger distance from the whistle .(Speed of sound =`330 m//s)` .

A whistle emmitting a sound of frequency 440 Hz is tied to a string of 1.5m length and rotated with an angular velocity of 20rad s^(-1) in the horizontal plane. Calculate the range of frequencies heard by an observer stationed at a large distance from the whistle.

A whistle emitting a sound of frequency 440 H z is tied to string of 1.5 m length and rotated with an angular velocity of 20 rad//sec in the horizontal plane. Then the range of frequencies heard by an observer stationed at a large distance from the whistle will (v=330 m//s)

A whistle emitting a sound of frequency 440 H z is tied to string of 1.5 m length and rotated with an angular velocity of 20 rad//sec in the horizontal plane. Then the range of frequencies heard by an observer stationed at a large distance from the whistle will (v=330 m//s)

A whistle emitting a loud sound of frequency 540 Hz is whirled in a horizontal circle of radius 2 m and at a constant angular speed of 15 rad//s . The speed of sound is 330 m//s . The ratio of the highest to the lowest frequency heard by a listener standing at rest at a large distance from the center of the circle is

A train standing at the outer signal of a railway station blows a whistle of frequency 400 Hz in still air. The train begins to move with a speed of 30 m s^(- 1) towards the platform. The frequency of the sound heard by an observer standing on the platform is (Speed of sound in air = 330 m s^(-1) )

A train standing at the outer signal of a railway station blows a whistle of frequency 400 Hz in still air. The train begins to move with a speed of 30 m s^(- 1) towards the platform. The frequency of the sound heard by an observer standing on the platform is (Speed of sound in air = 330 m s^(-1) )

A whistle emitting a sound of frequency 450 Hz approaches a stationary observer at a speed of 33 m/s. Velocity of sound is 330 m/s. The frequency heard by the observer, in Hz, is :