The vertical displacement d of light rays parallel to the axis of a lens is measured as a function of the vertical displacement h of the incident ray from the principal axis as shown in part (a) of the figure. The data are graphed in part (b) of the figure. The distance D from the lens to the screen is 1.0 m. What is the focal length of the lens for paraxial rays?

Transcribed Image Text:

Lens Screen -2 -2 10 2 h (cm)