A lens has a power of +3.0 D. What is its focal length in meters? - OPTICS Quiz | GKFix.in

Content protected from screenshots

Question

A lens has a power of +3.0 D. What is its focal length in meters?

A. +3.0 meters
B. +0.33 meters
C. -0.33 meters
D. +3.3 meters

Related Questions