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Spherical Mirrors

At what posit...

Question

At what position of the object does a convex lens act as a magnifying glass?

(a) between F and 2F
(b) between F and O
(c) beyond F
(d) beyond 2F

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Solution

(b) between F and O

Magnifying glass is a single lens that produces a highly magnified, erect image of the object. In concave mirror, a highly magnified erect image is produced when the object is placed between F and O.

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Q. At what position of the object does a convex lens act as a magnifying glass?
(a) between F and 2F
(b) between F and O
(c) beyond F
(d) beyond 2F

Q. A convex lens produces a magnification of + 5. The object is placed:
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(b) between f and 2f
(c) at less than f
(d) beyond 2f

Q. Draw ray diagrams to show image formation by a convex lens in the following cases.
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(b) the object is between F and 2F
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When the object is placed beyond 2F in front of convex lens, the image is formed

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