A lens with a focal length of 12 cm has what refractive power?
A) 5.0 diopters
B) 9.6 diopters
C) 6.7 diopters
D) 8.3 diopters

Name: A lens with a focal length of 12 cm has what refractive power? A) 5.0 diopters B) 9.6 diopters C) 6.7 diopters D) 8.3 diopters
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Question

Quizplus · Accepted Answer

Refractive power (in diopters) is calculated as the inverse of the focal length (in meters). For a focal length of 12 cm (0.12 meters), the refractive power is 1/0.12 = 8.33 diopters, which rounds to 8.3 diopters.

A Lens with a Focal Length of 12 Cm Has