NEET Physics Mean Free Path MCQ Question
Consider a diagram depicting molecules in a gas moving in random directions within a container. The mean free path is represented as the average distance traveled by a molecule between successive collisions. Which factor primarily determines the mean free path in this scenario?
Diameter of the gas molecules
Mass of the gas molecules
Temperature of the gas
Volume of the container
Correct Answer
Detailed Explanation
The mean free path is primarily determined by the diameter of the gas molecules, as it is inversely proportional to the square of the diameter, given a constant number density of molecules.
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