Question

an object in placed on the principal axis at 25 cm away from a convex lens of focal length 20 cm.the position of the image is

Answer 1

Answer:

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Explanation:

A point object is placed at a distance of 25 cm on the axis of a convex lens of focal length 20 cm . On the other side of the lens, a convex mirror is placed at a distance of 50 cm from the lens such that the image formed by the combination coincides with the object itself .