NEET · Physics · STD 11 - 12 . kinetic theory of gases
The mean free path for a gas, with molecular diameter \(d\) and number density \(n\) can be expressed as :
- A \(\frac{1}{\sqrt{2} n ^{2} \pi^{2} d ^{2}}\)
- B \(\frac{1}{\sqrt{2} n \pi d }\)
- C \(\frac{1}{\sqrt{2} n \pi d ^{2}}\)
- D \(\frac{1}{\sqrt{2} n ^{2} \pi d ^{2}}\)
Answer & Solution
Correct Answer
(C) \(\frac{1}{\sqrt{2} n \pi d ^{2}}\)
Step-by-step Solution
Detailed explanation
Mean free path for a gas sample \(\lambda_{ m }=\frac{1}{\sqrt{2} \pi d ^{2} n }\)
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