Ring||Disc||Cone||Conical Shell||Spherical Shell||Hemispherical Shell

Ring||Disc||Cone||Conical Shell||Spherical Shell||Hemisphere||Hemispherical Shell

Volume of Spherical Shell

In side a hollow spherical shell

Surface area of Spherical Shell

In side a hollow isolated spherical shell-

A sphere has surface charge density sigma . It is surrounded by a spherical shell. The surface charge density on the spherical shell is

A : Gravitational potential is constant everywhere inside a spherical shell . R : Gravitational field inside a spherical shell is zero everywhere .

A particle is placed on the top of a hemispherical shell of same mass. Shellis free to move on the smooth ground. If particle is given a given a gentle push and reaches to anglular position q as shown in figure then for an observer fixed on a shell, ratio of reaction force exerted by shell to peudo force (as observed from shell) acting on particale, is