Question

What is mean by aperture of a spherical mirror?​

Answer 1

All rays that are incident parallel to principal axis converge and get reflected through the principal axis. Since all the rays converge at the principal focus this point is very hot and can be used to start a fire. Aperture is the entire area of the reflecting surface of the spherical mirror.

Answer 2

tu ne answer copy kiya hai net se yea mere pass saboot hai so moderator plz this question and answer both