A whistle of frequency 540 Hz rotates in...

A whistle of frequency 540 Hz rotates in a horizontal circle of radius 2 m at an angular speed of 15 rad//s. The highest frequency heard by a listener at rest with respect to the centre of circle (velocity of sound in air =`300 ms^-1`)

590 Hz

594 Hz

598 Hz

602 Hz

Text Solution

Verified by Experts

The correct Answer is:

Velocity of source, `V_s=romega=2xx15= 30ms^-1`
The maximum frequency heard by stationary listner is,
`V=V_0[v/(v-v_s)]=540[330/(330-30)]=594"Hz"`

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