Question

where should an object be placed in front of convex lens is as in microscope​

Answer 1

Answer:

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Explanation:

At twice the focal length, the image formed by the convex lens is real and of the same size as the object. If the lens has a focal length of 20 cm, the object must be positioned 40 cm in front of the lens, creating an inverted image of the same size as the target, 40 cm behind the lens