Q.

A camera uses a               to form an image on a piece of film at the back.

A. convex lens
B. concave lens
C. diverging lens
D. none of these
Answer» A. convex lens
Explanation: A camera consists of three main parts. • The body which is light tight and contains all the mechanical parts. • The lens which is a convex lens. • The film or a charged couple device in the case of a digital camera.
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