Laser

Many demos are suggested using many different types of wave motion. The first time you set these up keep diagrams or exact...

Teaching Guidance 16-19

Class demonstration: This demonstration shows that a beam of light is diffracted as it passes around a wire, highlighting the...

Practical Activity 14-16

Demonstration: To show that a laser beam can easily be modulated to carry information.

Practical Activity 14-16

Demonstration: This can be shown to a sixth form class as a fun demonstration of light interference.

Practical Activity 14-16

Pupils will very often agree that to be able to see, light must enter the eye. However, it is possible to set up situations...

Classroom Activity 5-11 11-14

We'd suggest that it pays to emphasise that laser light is reflected from the rough surface of the wall in all directions...

Teaching Guidance 11-14

This episode considers uses of lasers, and the underlying theory of how they work.

Lesson 16-19

This demonstration shows that a beam of light is diffracted as it passes around a wire, highlighting the wave nature of light.

Practical Activity 16-19