Question

when and object is placed 15 cm from a convex lens, a real image three times larger than the objest is formed. find the focal length of the lens​

Answer 1

Answer:

this is the answer

Explanation:

A convex lens of focal length 10 cm produces a real image that is 3 times the size of an object.Originally Answered: At what distance should an object be placed from a convex lens of focal length 15 cm to obtain on image three times the size of the object? p = ?? Result: object distance is 20cm from the lens.

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