Question

the rays of light are converged by a convex lens thats why it is used to correct

Answer 1

Convex lens is used to correct hypermetropia.
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Answer 2

Answer:

A convex lens is used to correct hypermetropia (farsightedness).

Explanation:

1. A convex lens can be regarded as made of a very large number of portions of triangular prisms.

2. The bases of these prisms are towards the central thicker portion of the lens.

3. A ray of light passing through a prism bends towards its base.

Hence, a convex lens converges the light rays.

Concepts:

1. Convex lens :

A lens having both spherical surfaces puffed up outwards is called a convex lens.

2. It is thicker in the middle than at the edges.

3. A convex lens is also called a converging lens.