Question

What is the focal length of a convex lens, if the object distance is -24cm and image distance is 24cm​

Answer 1

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Suppose an object is placed u cm in front of a spherical mirror of focal length f such that the image is formed v cm from the mirror, then u, v and f are related by the equation; 1/f= 1/u + 1/v. This equation is referred to as the mirror formula. The formula holds for both concave and convex mirrors.

Answer 2

Explanation:

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