Questions
A lens is placed between a source of light and a wall. This forms images of area and on the wall for its two different positions. The area of the source of light is.
detailed solution
Correct option is C
m1=A1O and m2=A2O⇒m1m2=A1A2O2Also it can be proved that m1m2=1So O=A1A2Talk to our academic expert!
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Image of the sun is formed by a binconvex lens of focal length f. The image is a circular patch of radius r and is formed on the focal plane of the lens. Choose the correct statement from the following
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