What is the formula for speed of sound in terms of pressure and density?(a) a=\(\sqrt{\frac{\gamma P}{\rho}}\)(b) a=\(\sqrt{\frac{\gamma\rho}{P}}\)(c) a=\(\sqrt{\frac{\gamma RP}{\rho}}\)(d) a=\(\sqrt{\frac{\gamma P}{\rho R}}\)The question was asked during an online exam.Enquiry is from Measurement of Airspeed topic in portion Atmosphere and Air Data Measurement of Aircraft Performance

What is the formula for speed of sound in terms of pressure and densit

1.	What is the formula for speed of sound in terms of pressure and density?(a) a=\(\sqrt{\frac{\gamma P}{\rho}}\)(b) a=\(\sqrt{\frac{\gamma\rho}{P}}\)(c) a=\(\sqrt{\frac{\gamma RP}{\rho}}\)(d) a=\(\sqrt{\frac{\gamma P}{\rho R}}\)The question was asked during an online exam.Enquiry is from Measurement of Airspeed topic in portion Atmosphere and Air Data Measurement of Aircraft Performance
Answer» Right ANSWER is (a) a=\(\SQRT{\FRAC{\gamma P}{\rho}}\) To elaborate: The formula for speed of sound in terms of pressure and density is given by a=\(\sqrt{\frac{\gamma P}{\rho}}\) where a=speed of sound, P=pressure, ρ=density and γ is the ratio of specific HEAT at constant pressure to that of specific heat at constant VOLUME.

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