Learn about refraction, ray diagrams and how convex lenses bend light rays with this guide for KS3 physics students aged 11-14 from BBC Bitesize. BBC Homepage Skip to content ...

Physics in Motion. Closer Look 6N Lenses. Special | 14m 17s Video has Closed Captions | CC. We compare and contrast concave and convex lenses by drawing ray diagrams. In this Closer Look segment ...

The lens has a convex shape that changes its curvature when a voltage is applied, changing the lens’ focal length. The researchers say that this gives the lens eye-like functionality that could be ...