Question

Define Optics and Ray optics

Answer 1

Optics=> optics is the branch of Physics which involves the behaviour and properties of light.

Ray Optics =>
study of path of light is considered in Ray Optics.
That is a straight path on which light moves in a homogeneous medium, the study of light is termed as Ray optics.

Answer 2

Optics: A branch of physics that studies electromagnetic radiation.(for example light and infrared radiation)

Ray Optics: A light ray is a line that is perpendicular to the lights wavefronts a tangent is collinear with the wave vector.


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