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Is it true that lenses are commonly used in day to day life?

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a

True

b

False

answer is A.

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Detailed Solution

The above statement is True.
Curved lenses are used in day-to-day life. The most commonly used lenses are concave and convex. A few examples of where lenses are being used are magnifying glasses, cameras, and binoculars.
A magnifying glass is a convex lens.
We know that a convex lens is also called a converging lens, and all the incident rays converge at F (Principal focus). When a convex lens is held closer to the eyes, the focal length of the objects becomes minimal. The object here lies between F and C.
The concave lenses are used in glasses that correct the gap by spreading the light rays before it reaches the eyeball.
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