Question

give two use each of a concave and convex lens?​

Answer 1

Answer:

State two applications each of a convex lens and a concave lens. (ii) With its short focal length it is also used as a magnifying glass. (i) A person suffering from nearsightedness or myopia wears spectacles having concave lens. (ii) A concave lens is used as eye lens in a Galilean telescope to obtain an erect final image of the object.

Explanation:

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Answer 2

Answer:

Most high quality cameras, telescopes and binoculars use concave lenses to improve the quality of the images they provide. Microscopes and reflecting telescopes make use of a concave mirror, a plane mirror, and a convex lens, while refracting telescopes use two convex lenses.

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