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A point sound source is situated in a me...

A point sound source is situated in a medium of bulk modulus `1.6times10^(5)N/m^(2)` . The equation for the wave emitted from it is given by `(y=a sin(7.5 pi x-3000 pi t))` . Then velocity wave is v and the displacement amplitude of the waves received by the observer standing at a distance 5m from the source is A.The density of medium is rho .The maximum pressure amplitude tolerable to the observer's ear is 30Pa then 1)`qquad rho=1.5kg/m^(3) `
2) v=400m/s
3)A=10^(-4) /4π m
4)`qquad rho=2.5kg/m^(3) `

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