Q. Under identical conditions of pressure and density, the speed of sound is highest in a
A) Monoatomic gas
B) Diatomic gas
C) Triatomic gas
D) Polyatomic gas
Explanation
(a) $v = \sqrt{\frac{\gamma p}{\rho}}$ . The speed $(v)$ will be highest for the gas for which $\gamma$ is highest, which is monoatomic gas .
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.