The radius of curvature of a convex mirror of small aperture is 100 cm. It's focal length in SI unit is *
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Explanation:
We have
Radius of curvature,
R = 100cm
Radius of curvature = 2 x Focal length (f)
=> R = 2f
=> f = R/2
=> f = 100/2
=> f = 50cm
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