Consider the sound wave travelling in ideal gases of He, CH₄, and CO₂. All the gases have the same ratio P/(ρ), where P is the pressure and ρ is the density. The ratio of the speed of sound through the gases v He: v CH₄: v CO₂ is given by

(B) √(5/3): √(4/3): √(4/3)

(A) √(4/3): √(5/3): √(7/5)

(C) √(5/3): √(4/3): √(7/5)

(D) √(7/5): √(5/3): √(4/3)

Oscillations and Waves: JEE Main 2025 Physics question

JEE Main 2025 · 4 Apr, Morning shift · Q38

JEE Main 20254 Apr, Morning shiftPhysicsMediumOscillations and Waves185× since 2002

Consider the sound wave travelling in ideal gases of He,

\mathrm{CH_4}

, and

\mathrm{CO_2}

. All the gases have the same ratio

\frac{P}{\rho}

, where

P

is the pressure and

\rho

is the density. The ratio of the speed of sound through the gases

v_{He} : v_{CH_4} : v_{CO_2}

is given by

JEE Main 2025 Oscillations and Waves Question with Solution (4 Apr Morning shift, Q38) | JEE Arc