Diffraction Grating
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…
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Light & Optics interactive resources
Explore Light & Optics through 5 licensed Physics simulations, guided investigations and challenges for classroom teaching.
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Available resources
Electromagnetic Spectrum Ruler
A logarithmic ruler running from radio waves to gamma rays. Students read wavelength, frequency and photon energy together alongside the observing instruments, everyday…
Optical Lightbench
A 2D and 3D optical lightbench for mirrors, lenses, refraction, total internal reflection and real and virtual images. Students arrange components and trace rays to see…
Rays and Shadows
Students use a ray-based light model to compare sharp and soft shadows, investigate umbra and penumbra, move the Moon through solar and lunar eclipse geometries, and…
Wave Ray Duality
Explore single-slit diffraction and the transition from a wave-based description to a geometric-ray approximation. Students adjust wavelength, slit width and distances…