find the power of a concave lens of focal length 4 metre
Answers
Answered by
2
Answer: The diopter is the unit of measure for the refractive power of a lens. The power of a lens is defined as the reciprocal of its focal length in metres, or P=f1, where P is the power in diopters and f is the focal length in metres.
Please Mark Me As Brainliest (:
Similar questions