NEET2020Physics-Kinetic Theory of Gases
NEET 2020 Physics Mean Free Path MCQ Question
Type: MCQ-conceptual-Easy-Class 11
The mean free path for a gas, with molecular diameter d and number density n can be expressed as:
A
1 / (√2 n²πd²)
B
1 / (√2 n²π²d²)
C
1 / (√2 nπd)
D
1 / (√2 nπd²)
Correct Answer
Option D
Detailed Explanation
The mean free path λ is given by λ = 1/(√2 nπd²), which is the average distance traveled by a molecule between collisions.
Found an issue with this question?