MCQ
The mean free path λ of molecules is given by
- A$\sqrt{\frac{2}{\pi n d^2}}$
- B$\frac{1}{\pi n d^2}$
- ✓$\frac{1}{\sqrt{2} \pi n d^2}$
- D$\frac{1}{\sqrt{2 \pi n d^1}}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.