The mean free path of molecules in an ideal gas A is half that of another ideal gas B . The diameter of the spherical molecules of gas A is twice the diameter of the molecules of B . If number densities of the gases A and B are n A and n B , respectively, the correct option is:

1. A. n A=n B
2. B. n A=2n B
3. C. n A= 1 4 n B
4. D. n A= 1 2 n B

Attempt this NEET 2026-reneet Physics question free — pick an option to reveal the correct answer and a step-by-step explanation. Then join NEET Mastery Quest to practise 15,000+ PYQ and 2027-syllabus questions.