Today, from young children to teenagers to adults, almost everyone around us has a barrier between their eyes and the vivid and vast world around them – concave lenses. Glasses and contact ...

The questions in this quiz are suitable for GCSE physics students studying convex and concave lenses, real and virtual images, magnification and colour. If you struggled with the quiz, don't panic ...

Two or more views of a scene are printed on a thermoplastic sheet of lenticular (concave) lenses that look like parallel ridges (see below). In order to align the image to the lens array ...