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If the radius of curvature of a spherical mirror is 32 cm, its focal length is

Question
If the radius of curvature of a spherical mirror is 32 cm, its focal length is
64 cm
32 cm
16 cm
8 cm
Answer
16 cm
Detailed Explanation
Using R = 2f, f = R/2 = 32/2 = 16 cm.
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