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Normal Force

The molecule ...

Question

The molecule at the surface of the liquid feels the net force in the________ direction.

A

Upward direction

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B

Downward direction

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C

Right direction

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D

Net force is zero.

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Solution

The correct option is B Downward direction
The molecules at the surface of the liquid have cohesive forces acting on it in the downward direction. These forces act on the surface of the liquid, as well as in other directions in the liquid but has no force acting on it in the upward direction. As a result, the surface molecules experience an inward cohesive force.

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