Question

what will be the focal length of a convex lens of radius of curvature 30cm​

Answer 1

Answer:

Explanation:

15cm

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Answer 2

The focal length of the mirror is 15 cm.

Explanation:

We know that the relationship between the radius of curvature and the focal length is given by :

R = 2 f

f is the focal length of the convex mirror

Here, radius of curvature of the mirror is 30 cm. As a result, the focal length becomes :

$f=\dfrac{R}{2}$

$f=\dfrac{30}{2}$

f = 15 cm

So, the focal length of the mirror is 15 cm.

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What will be the focal length of a convex lens of radius of curvature 30cm​

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