Questions
A person can see things clearly upto 3m what is the power of lens he should use so that he can see upto 12 m ?
detailed solution
Correct option is D
Person has short sightedness1u+1v=1f ; 112+1-3=1f ∴f=-4m ; P=-14=-0.25DTalk 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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