Light, Sound and Waves

Demonstration: Plane waves in a ripple tank strike two narrow gaps. Each gap produces circular waves beyond the barriers, and...

Practical Activity 14-16

Demonstration: This is a simple demonstration of the interference of the light. From this, students can calculate the...

Practical Activity 14-16

Demonstration: Shows that an invisible part of the electromagnetic spectrum too produces interference fringes from two...

Practical Activity 14-16

Demonstration: This kinesthetic experience reinforces understanding of the interference pattern that results from two coherent...

Practical Activity 14-16

Class practical: Two overlapping patches of light make bright and dark bands, giving direct evidence for the wave nature of...

Practical Activity 14-16

Practical Activity 14-16