The expression of mean free path, if we consider that only one molecule is moving, for whom we are considering mean free path

The expression of mean free path, if we consider that only one molecul

1.	The expression of mean free path, if we consider that only one molecule is moving, for whom we are considering mean free path
Answer» `(1)/(npid^(2))` `(1)/(SQRT(2)npid^(2))` `npid^(2)` `sqrt(2)npid^(2)` ANSWER :A