Q. Velocity of sound measured in hydrogen and oxygen gas at a given temperature will be in the ratio
A) $1\ :4$
B) $4\ :1$
C) $2\ :1$
D) $1\ :1$
Explanation
(b) $v \propto \frac{1}{\sqrt{M}} \Rightarrow \frac{v_{H_{2}}}{v_{O_{2}}} = \sqrt{\frac{M_{O_{2}}}{M_{H_{2}}}} = \sqrt{\frac{32}{2}} \Rightarrow \frac{v_{H_{2}}}{v_{O_{2}}} = \frac{4}{1}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.