Question

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what is magnifying glass?? state uses
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Answer 1

Answer:

Magnifying glass is a convex lens of short focal length. It is mounted in a lens holder for practical use.It is used to see and read the small letters and figures. It is used by watch makers to see the small parts and screws of the watch.

Explanation:

Uses of magnifying glass:

A magnifying glass (called a hand lens in laboratory contexts) is a convex lens that is used to produce a magnified image of an object. The lens is usually mounted in a frame with a handle.

Answer 2

A magnifying glass is a convex lens that is used to produce a magnified image of an object. The lens is usually mounted in a frame with a handle. A magnifying glass can be used to focus light, such as to concentrate the sun's radiation to create a hot spot at the focus for fire starting

Invention date⤵️

the magnifying glass was invented by the Franciscan friar and scholar Roger Bacon (UK) (c. 1214-1292) in Oxford, UK. The first mention of its use was in 1268.

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