Question

What type of lens is used in a camera to focus the image?

• A. Concave lens
• B. Convex lens

Answer 1

The correct option is B Convex lens

• A convex lens is a converging lens.

• Therefore when parallel light rays pass through the lens, the refracted rays converge at one point, which is called the principal focus.

• The angle at which the rays of light enter the convex lens depends on the distance of the object from the lens.