Question

write newtons formula fir velocity of sound in gases.explain laplaces correction​

Answer 1

Newton's Formula & Laplace's correction. Newton assumed that when sound propagates through air, temperature remains constant (i.e. the process is isothermal). (isothermal bulk modulus BT of a gas is equal to its pressure). The experimental value of v in air is 332 m/s at NTP.

Answer 2

Newton assumed that when sound propagates through air, temperature remains constant (i.e. the process is isothermal).

LAPLACE’S CORRECTION :

Laplace assumed that the propagation of sound in air is an adiabatic process not the isothermal.