A uniform thin hemispherical shell is kept at rest and in equilibrium on an inclined plane of angle
Channel: Doubtnut
Date: 2020-04-12

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 :