Question

A lens is a portion of a transparent medium bounded by two surfaces and

Answer 1

(iv) The power of a convex lens increases when the lens is cut into two identical plano-convex lenses.

What is power of a lens?

The power of a lens is defined as the reciprocal of its focal length. It is measured in diopters.

Factors affecting the power of a lens

The power of a lens depends on the focal length of the lens which depends on;

• the refractive index of the glass from which it is made, and
• on the curvature of its two surfaces

P = 1/f

where;

• P is power of the lens
• f is focal length of the lens

When the focal length decreases, the power of the lens increases.

Thus, the power of a convex lens increases when the lens is cut into two identical plano-convex lenses.

Learn more about convex lens here: brainly.com/question/28039799

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