1. A convex lens of focal length f produces a virtual image n time of the object. The distance of object is:
(a) (n+1/n)f
(b) (n-1/n)f
(c) (n+1)f
(d) (n-1)f
please just do step by step solution
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Answer:
option b is your answer
Explanation:
focal length = +f object size = image size = n
magnification = =
⇒v= n u
u =
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