1.

A source emitting sound of frequency f_0 is moving in a circle of radius R, having centre at the origin with a uniform speed =c/3 where c is the speed of sound.Find the maximum and minimum frequencies heard by stationary listener at the point (R/2,0)

Answer»

` (6f_0)/( 5) ,( 6f_0)/( 7) `
` f_o((2sqrt( 3))/( 2SQRT3-1)) ,( f_o(2sqrt3)/( 2sqrt3+1))`
` (3f_o)/( 2),( 3f_o)/( 5)`
` ( 4f_o)/( 3) ,( 4f_o)/( 5)`

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