Dry air ( ) at supports sound waves that travel at

PHYSICS · Subjective · CBSE · Physics · Waves · Waves

Problem

Dry air (

\gamma_1 = 1.40

) at

300\,\text{K}

supports sound waves that travel at

349\,{\rm m\,s^{-1}}

. At what temperature must moist air having

\gamma_2 = 1.33

be maintained so that the speed of sound in it equals that in the dry air?