A body is in equilibrium on a rough inclined plane undr its own weight. If the angle of inclination of the inclined plane is `alpha` and the angle of friction is `lambda`, then

By increasing the angle of inclination, the M.A. of an inclined plane

If the angle of inclination of an inclined plane of 30^(@) , its mechanical advantage is ______

When a body is lying on a rough inclined plane and does not move, the force of friction

A box is placed on an inclined plane and has to be pushed down.The angle of inclination is

A uniform thin hemispherical shell is kept at rest and in equilibrium on an inclined plane of angle of inclination theta=30^(@) as shown inf figure. If the surface of the inclined plane is sufficiently rough to prevent sliding then the angle alpha made by the plane of hemisphere with inclined plane is :

A body takes 1(1)/(3) times as much time to slide down a rough inclined plane as it takes to slide down an identical but smooth inclined plane,If the angle of inclination is 45^(@) find the coefficient of friction.