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EAMCET Engineering 2007 Solved Paper

Section: Physics
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Question : 21 of 160
 
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A whistle of frequency 540‌Hz rotates in a horizontal circle of radius 2m at an angular speed of 15‌rad∕ s. The highest frequency heard by a listener at rest with respect to the centre of circle (velocity of sound in air =330ms−1 )
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