Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Kinetic Theory

Question:

The Mean Free Path for a gas molecule depends upon diameter, d of the molecule as : 

Options:

l ∝ \(\frac{1}{d}\)

l ∝ \(\frac{1}{d^2}\)

l ∝ d

l ∝ d2

Correct Answer:

l ∝ \(\frac{1}{d^2}\)

Explanation:

Expression :

Mean free path : l = \(\frac{1}{\sqrt{2} n \pi d^2}\)