JEE Main Physics question
A block is at rest on an inclined plane making an angle α with the horizontal. As the angle α of the incline is increased, the block starts slipping when the angle of inclination becomes θ. The coefficient of static friction between the block and the surface of the incline is [CBSE PMT 1993]
Answer: (C)
Solution
At the point of slipping (angle of repose), μₛ = tanθ.