The Velocity of a Longitudinal Sound Wave in an Ideal

Multiple Choice

The velocity of a longitudinal sound wave in an ideal gas is given by v = ,where γ is the ratio of the specific heat at constant pressure to that at constant volume,P is the pressure,and ρ is the mass density.Assuming an ideal gas with γ = 1.4 and ρ = 1.4 g/l at standard temperature and pressure,find the wavelength for a 2700 Hz sound wave.

A) 0.12 m
B) 0.00 m
C) 8.33 m
D) 0.02 m