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A sound wave travels through a column of hydrogen at STP. Assuming a density of rho = 0.0900 kg/m3 and a bulk modulus of β = 1.42 ✕ 105 Pa, what is the approximate speed (in m/s) of the sound wave?

Respuesta :

Answer:

speed of sound will be 1256 m/sec

Explanation:

We have given density [tex]\rho =0.09kg/m^3[/tex]

And bulk modulus [tex]\beta =1.42\times 10^5Pa[/tex]

We know that speed of sound in a medium is given by

[tex]v=\sqrt{\frac{\beta }{\rho }}[/tex], here [tex]\beta[/tex] is bulk modulus and [tex]\rho[/tex] is density

So speed will be [tex]v=\sqrt{\frac{1.42\times 10^5}{0.09 }}=12.56\times 10^2=1256m/sec[/tex]

So speed of sound will be 1256 m/sec