The force of friction which is introduced when there is no relative motion between the surfaces in contact is called _____?

Static Friction

The correct answer is Option (1) → Static Friction

The force of friction that exists when there is no relative motion between the surfaces in contact is called Static Friction.

Static friction is a self-adjusting force that acts between two or more solid objects that are not moving relative to each other. For example, it is the force that prevents a heavy box from sliding when you first start to push it, or keeps a car parked on a hill from rolling down.