The periscope is an optical device with a polished surface that reflects the light falling on it.

The _____ is an optical device with a polished surface that reflects the light ralling on ot.

What kind of surface reflects light?

What is reflection of light?

___________________ surface reflects the light well

Which object use the reflection of light?

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 its if the source emits a power W.

Why do we need a shiny surface for reflection?

Say TRUE or False.We see a book because it reflect the light that falls on its surface

The device used for detecting optical signal is