In this video Paul Andersen explains how ray diagrams for lenses can be used to determine the size and location of a refracted image. Images may be either real or virtual images. Ray diagrams for converging and diverging lenses are...

LIGHT! Let's talk about it today. Sunlight, moonlight, torchlight, and flashlight. They all come from different places, but they’re the very same thing: light! It’s what makes it possible for us to see the world around us, so it’s worth...

Pupil outcome: I can explain how light from an object can be focused by a converging lens to form an image. Key learning points: - Some of the light from objects can pass through a lens and become focused to form an image on a screen. -...

It expresses the lens maker formula and lens formula,explains refraction by lens,power of lens,combination of thin lenses in contact.