An image formed by a concave mirror Animation Play

An object brought closer to the focal point Animation Play

An object brought closer to the mirror Animation Play

Areas of various shapes Student activity Play

Concave and convex mirrors Slideshow Play

Concave mirror, f < x ≤ 2f Whiteboard exercise Play

Concave mirror, f < x ≤2f Student activity Play

Concave mirror, x < f Student activity Play

Concave mirror, x < f Whiteboard exercise Play

Concave mirror, x > R Whiteboard exercise Play

Concave mirror, x > R Student activity Play

Converging and diverging lenses Student activity Play

Converging and diverging lenses Simulation Play

Converging and diverging lenses Whiteboard exercise Play

Correction for short-sightedness Animation Play

Focal length and the shape of a lens Student activity Play

Focal point and focal length Animation Play

Focal point of a concave mirror Student activity Play

Focal point of a concave mirror Whiteboard exercise Play

Focusing of rays Student activity Play

Images formed by a diverging lenses Student activity Play

Images formed by diverging lenses Animation Play

Images formed by diverging lenses Whiteboard exercise Play

Images in convex mirrors Whiteboard exercise Play

Images in convex mirrors Student activity Play