The ratio of the speed of sound in nitrogen gas to that in helium gas at is

PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

The ratio of the speed of sound in nitrogen gas to that in helium gas at

300\text{ K}

is (1)

\sqrt{\frac{2}{7}}

(2)

\sqrt{\frac{1}{7}}

(3)

\frac{\sqrt{3}}{5}

(4)

\frac{\sqrt{6}}{5}