Question

if an object is kept 20 CM away from the lens on the image formed at 40 cm away from the lens then what is the focal length of the lens and what type of lens cities find the magnification also​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:Here's your answer

Explanation:

Magnification = 2

Find: Focal length f of the lens, type of lens and magnification m.

Solution :m = v / u = 40 / 20 = 2. Since m is greater than 1, the lens is convex lens.