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in Physics by (79.0k points)

In a concave mirror. an object is placed at a distance d1 from the focus and the image is formed at a distance d2 from the focus. Then the focal length of the mirror is

(a)  √(d1d2)

(b)  d1d2

(c) (d1 + d2)/2

(d)  √(d1/d2)

1 Answer

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by (50.7k points)
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Best answer

Correct option (a)  √(d1d2)

Explanation:

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