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Comment on Laplace correction to Newton's formula for velocity of sound in air. |
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Answer» Solution :Newton ASSUMED that the isothermal condition prevails as there is adequate TIME for equalisation of temperature between the disturbed portion of the MEDIUM ( system ) and the rest of the air ( surrounding ) . However Laplace arged that change in pressure and volume in the region of rarefaction and compression is adiabatic as there is inadequate timefor temperature EQUILIBRIUM . `v = SQRT((gamma p)/( rho ))` is Laplace equation for speedof sound in air. |
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