State two applications each of a convex and concave lens.

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Solution

The two applications of a convex lens are:-

It is used as an objective lens in a telescope, camera, slide projector, etc.

It is also used as a magnifying glass.

The two applications of a concave lens are:-

A person suffering from short-sightedness or myopia wears spectacles having concave lens.

A concave lens is used as eye lens in a Galilean telescope to obtain an erect final image of the object.

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Question 7

You are provided with a convex mirror, a concave mirror, a convex lens and a concave lens. You can get an inverted image from

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Q. State two applications each of a convex lens and concave lens.

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