Question

What is normal reaction

Answer 1

it is the reaction which is always perpendicular to the action.

Answer 2

$\huge \text{Normal\: Reaction }$

❁ A body placed on any surface experiences a force which is perpendicular to the surface.this force is called Normal force or normal reaction .

❁ The body is at rest on a horizontal surface the magnitude of the normal force is equal to the weight of the body.