Question

I WILL MEDAL YOU How to draw Convergent and Divergent rays on a mirror or lens? (as a diagram)

Answer 1

for example, we consider the cas of mirrors
A) convergent rays, only with concave mirrors:


namely rays wich are parralel with respect to the optical axis, after the reflection, will pass at the focus of the mirror. Whereas, rays which passes at the center of the mirror, after the ir reflection, will pass at the center of the mirror again