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Physics · Light & Optics
Diffraction Grating, Years 11–12
Students switch between single-slit diffraction, Young's double slit and a multi-slit grating, adjusting slit width, separation, slit count and wavelength while an animated wave model and intensity pattern respond. The full interactive is available to licensed Education Universe users.
Years 11–12Explorer
Learning outcomes
- Explain diffraction and interference of light.
- Predict how slit width, separation and wavelength affect the pattern.
- Compare single-slit, double-slit and grating patterns.
Teaching guidance
Ask students to predict the effect of each change on the fringe spacing before adjusting the controls.
Use Diffraction Grating with your class
Start a free 30-day trial with class codes and progress tracking, or talk to us about your school's licence.
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Diffraction Grating is one of the licensed interactives in The Education Universe. This page describes it; teachers use it in lessons and classes with a licence or the free trial.