In convex lens, the image is always formed at a point where at least two refracted light rays meet. Rule 1: A ray of light which is originally parallel to the principal axis passes through the ...

A double-convex lens is compose of two convex surfaces, has a positive focal length. Normally Bi-Convex lenses are most suitable where the object and image are on opposite sides of the lens, and are ...

Achromatic lenses are suitable for a variety of applications such as fluorescence microscopy, image relay, detection, or spectroscopy. The manufacturing process for achromatic lenses involves gluing ...

Also, even though the image formed on the retina is inverted our mind interprets it as erect. So, the eye lens is the convex lens and the retina is the screen of the eye.

Learn about and revise lenses and their power, real and virtual images, and ray diagrams with GCSE Bitesize Physics.