A convex mirror is made by cutting a hollow sphere of radius of curvature 20 cm. Find the focal lenght of the mirror.
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Answer:
In the given problem, radius of curvature, R = 20 cm.
Focal length of the mirror
= Radius of curvature/2
Therefore, focal length,
f = 20/2
= 10 cm.
Therefore, focal length of the convex mirror is 10 cm.
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cm.
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