The radius of curvature of the spherical surface of the mirror is 20 cm. Determine the focal length of the mirror.
| January 27, 2021 | education
Problem data: R (radius of curvature of the spherical surface of the taken mirror) = 20 cm.
The focal length of the taken mirror can be expressed from the formula: D = 1 / F = 2 / R, whence F = R / 2.
let’s perform the calculation: F = 20/2 = 10 cm.
Answer: The focal length of the taken mirror is 10 centimeters.
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