A ₹100 note lying in the pocket of Rohit is an example of a Stock variable.

Stock variables represent a quantity measured at a specific point in time, such as the amount of money held by an individual at a given moment. In contrast, Flow variables represent a quantity measured over a period of time, such as income or expenditure. The question says that ₹ 100 note is lying in the pocket at a point of time, hence it is a stock concept.