Questions
The graph shows how the inverse of magnification produced by a thin convex lens varies with object distance u. What was the focal length of the lens used?
detailed solution
Correct option is D
1v−1−u = 1f ⇒ 1m = uf−1∴ 1f = bc ⇒ f = cbTalk 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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