Light, Sound and Waves

Big Idea: Waves carry information without causing a permanent change on the intervening medium. More info...

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Diffraction at narrow openings

Class Practical: Using barriers in a ripple tank to see what happens to plane waves at narrow openings.

Practical Activity 14-16

Class Practical: Using barriers in a ripple tank to see what happens to plane waves at wide openings and edges.

Practical Activity 14-16

Demonstration: This ripple tank experiment models the action of a diffraction grating.

Practical Activity 14-16