1.

When pressure on a gaseous medium is changed at constnat temperature, what will be effect on the speed of sound wave in it ?

Answer»

Solution :Speed of sound wave in a GASEOUS medium is,
`v = SQRT ((gamma P )/(rho))`
`therefore v = sqrt ((gamma P )/(M //V)) = sqrt (( gamma P V )/(M )) = sqrt ((gamma MU RT)/( mu M _(0))) = sqrt (( gamma RT)/(M _(0)))`
`therefore ` At constant TEMPERATURE, `v=` constant
`thereofre ` At constant temperaure, there will not be any effect of change in pressure on the velocity of sound wave in it.


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