Questions
A magnifying glass is to be used at the fixed object at a distance of distance of 1 inch. lf it is to produce an erect image magnified 5 times. Its focal length should be
detailed solution
Correct option is C
m=vu=5⇒v=5 inch given u=1 inchUsing sign convention u=−1 inch, v=−5 inch∴1f=1v−1u=1−5−1−1⇒f=1.25 inchTalk to our academic expert!
Similar Questions
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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