Which of the following expressions gives the speed of sound in an ideal gas according…

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Problem

Which of the following expressions gives the speed of sound in an ideal gas according to Laplace’s correction? (a)

v=\sqrt{\dfrac{\gamma p}{\rho}}

(b)

v=\sqrt{\dfrac{p}{\rho}}

(c)

v=\sqrt{\dfrac{p}{\gamma\rho}}

(d)

v=\sqrt{\dfrac{3RT}{M}}