NEET Physics Surface Tension Assertion Reason Question
Assertion (A): A liquid film has surface energy due to the presence of molecules at the surface. | Reason (R): Molecules at the surface of a liquid experience balanced forces from all directions.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false.
Correct Answer
Detailed Explanation
Molecules at the surface of a liquid have higher energy due to unbalanced forces, not balanced forces, as they are only surrounded by other molecules on one side.
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