12:36

Concave mirrors

10:10

Sign conventions for mirror (& lenses)

13:23

Convex & concave mirror ray diagrams

5:31

Spherical & parabolic mirrors

9:36

Convex lens examples | Geometric optics | Physics | Khan Academy

10:13

Magnification formula for mirrors

8:31

Lens formula

8:19

Solved example: Mirror formula