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प्रश्न
Calculate the focal length of a spherical mirror whose radius of curvature is 25 cm.
संख्यात्मक
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उत्तर
Given: Radius of curvature (r) = 25 cm
We know that f = `R/2`
f = `25/2`
f = 12.5 cm
∴ The focal length of the spherical mirror is 12.5 cm.
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