A ray of light enters a spherical lens.The effective focal length of the lens is determined by each of the following EXCEPT ONE.Which is the exception?
A) the curvature of the lens
B) the distance from the center line at which the ray enters the lens
C) the placement of the eyepiece
D) the wavelength of the light

Question

Quizplus · Accepted Answer

The placement of the eyepiece can affect the magnification of the image produced by the lens, but it does not affect the effective focal length of the lens. The effective focal length depends on the curvature of the lens, the distance from the center line at which the ray enters the lens, and the wavelength of the light.

A Ray of Light Enters a Spherical Lens