Principle of superposition Student activity Play

Pulsars Student activity Play

Pulsars Animation Play

Reflection of light at a smooth surface Animation Play

Reflectors Student activity Play

Semiconductor laser Slideshow Play

Semiconductor laser Student activity Play

Semiconductor laser Whiteboard exercise Play

Spontaneous and stimulated emission Student activity Play

The application of lasers Student activity Play

The application of lasers Whiteboard exercise Play

The circulatory system Class activity Play

The circulatory system Whiteboard presentation Play

The colour of the laser beam Whiteboard exercise Play

The energy of waves Animation Play

The Law of Reflection Student activity Play

The length of a laser Illustration Play

Transfer of energy by waves Student activity Play

Two mirrors Animation Play

Types of lasers Slideshow Play

Wave pulse and a mechanical wave Student activity Play

Wave pulse and a mechanical wave Whiteboard exercise Play

Wave velocity and tension Whiteboard exercise Play

Wave velocity and tension Student activity Play