Question

Assertion (A): A body kept on an inclined plane will just begin to slide when the
angle of inclination (0) of the plane to the horizontal acquires the value 0 = tan-1
= coefficient of static friction between the body and the plane.)
Reason (R) : The force of friction is a self adjusting force that can increase, with
increase in applied force, upto a certain maximum, or limiting value.​

Answer 1

Both assertion and reason are true and the reason is the correct explanation for the assertion.

Option (b) is correct.

Explanation:

• If a body is moving on an inclined plane then the angle of inclination and angle of friction will become equal.
• When both angles become equal to each other then the component of force i.e weight will become parallel to the plane.
• Therefore we can say that both assertions and reason are true.