Question:

A point source of light is placed at the centre of curvature

Last updated: 6/4/2023

A point source of light is placed at the centre of curvature

A point source of light is placed at the centre of curvature of a hemispherical surface The radius of curvature is r and the inner surface is completely reflecting Find the force on the hemisphere due to the light falling on it if the source emits a power W