Shining IR Light Through Myself

Refraction and Dispersion of Light through Prism

As source of light is at the focus of convex lens. The outcoming light through the lens will be in the form of

Refraction of light through Prism| condition of maximum and minimum deviation|Dispersion of light through Prism

For the refraction of light through a prism

For refractin of light through a prism

A ray of light passes through a glass plate of thickness and refractive index mu if the speed of light in vacuum is c ,then the time taken by light in passing through the plate will be-