Q.

Which of these is an application of image formation when the object is placed beyond 2F1 of a convex lens?


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a

Telescope

b

Photographic camera

c

Projector

d

Search lights 

answer is B.

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Detailed Solution

A photographic camera is an application of image formation when the object is placed beyond 2F1 of a convex lens.
When the object is placed beyond 2F1 of a convex lens, a real and diminished image is formed. This type of image is used in photographic cameras, where a small, real and inverted image of an object is formed on the film.
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