Question

Equal number of gas molecules A (mass 𝑚 and radius 𝑟) and B (mass 2𝑚 and radius 2𝑟) are placed in two separate containers of equal volume. At a given temperature, the ratio of the collision frequency of B to that of A is
(Assume the gas molecules as hard spheres)

• A. $\sqrt2:1$
• B. 2$\sqrt2:1$
• C. 1:$\sqrt2$
• D. 1:2$\sqrt2$

Answer 1

Answer: (B)

2$\sqrt2:1$

Answer 2

The correct option is (B): 2$\sqrt2:1$