What is magnification produced by a plane mirror?

Define magnification of spherical mirror. What is the magnification produced in a plane mirror?

The magnification produced by plane mirror is +1. What does this mean?

What is th magnification produced by a single convex lens used as simple microscope in normal use?

What is magnification of a lens?

What is difference between magnification and angular magnification produced by a lens?

What do you mean by linear magnification produced by a lens? Derive its various expressions.

Define linear magnification produced by a lens.Hence derive expression for it also define the power of a lence and its unit.