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Calculate the speed of longitudinal wave...

Calculate the speed of longitudinal waves in the following gases at `0^(@) C` and `1 atm( = 10^(5) pa):`
(a) oxygen for which the bulk modulus is `1.41 xx 10^(5)` pa and density is `1.43 kg//m ^(3)` .
(b) helium for which the bulk modulus is `1.7xx 10^(5)` pa and density is `0.18 kg//m^(3)` .

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D
(a) `nu_(o2)= sqrt (B/(rho))`
`= sqrt((1.41xx10^(50))/(1.43)`
`314 m//s`
(b) `nu_(He) =sqrt(B/(rho))`
`= sqrt((1.7xx10^(5))/(0.18)`
`= 972 m//s`
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