STANDARDPhysics-Kinetic Theory of Gases
STANDARD Physics Mean Free Path MCQ Question
Type: MCQ-conceptual-Medium-Class 11
The mean free path λ of molecules is given by where n is the number of molecules per unit volume and d is the diameter of the molecules.
A
√2πnd²
B
1/πnd²
C
1/√2πnd²
D
1/√2πnd²
Correct Answer
Option C
Detailed Explanation
Mean free path λ of a molecule is represented as: λ = 1/√2πd² * N/V where N = no. of molecules, V = volume, n = N/V. So, λ = 1/√2πd²n. The correct answer is 1/√2πnd².
Found an issue with this question?