Question

What is paraxial ray and marginal ray? Explain with Ray diagram

Answer 1

Answer:

paraxial rays-those rays which make small angle with normal at point of incidence and hence are close to principal axis(near principal axis)

Marginal rays-rays having a large angle of incidence.(far from principal axis)

Answer 2

Answer:

Paraxial rays:

* The rays traveling very close to the principal axis& make small angles with it r called Paraxial rays.

Marginal rays:

*The rays traveling far away from the principal axis& fall on the mirror far away from the pole r called as marginal rays.