Question

find the focal length in uv method with calculation​

Answer 1

Answer:

The focal length of a convex lens is calculated by the lens formula

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Answer 2

Answer:

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.