Consider Newton’s and Laplace’s expressions for the speed of sound in a gas.

PHYSICS · Multi-part · CBSE · Physics · Kinetic Theory · Kinetic Theory

Problem

Consider Newton’s and Laplace’s expressions for the speed of sound in a gas. (i) Show that the ratio of the Laplace value to the Newton value is

\sqrt{\gamma}

. (ii) For air with

\gamma = 1.4

, evaluate this ratio to two significant figures.