In geometrical optics, a ray of light is defined as

Geometric Optics

Geometrical Optics Part-2

Geometrical Optics Part-1

Define a ray of light?

The geometrical path of a ray of light in a medium of refractive index 2 is 8 m. The optical path is :

What is Geometrical Optics deal ?

Draw a labelled ray diagram to show how a ray of light is refracted when it passes: a) From air into an optically denser medium. b) from an optically denser medium into air.

Geometric And Optical Paths