An object faces a spherical refracting surface.If r is negative,
A)the surface is convex.
B)the surface is concave.
C)the image must be real.
D)the object distance must be negative.
E)this cannot happen; r must be positive.

Question

Quizplus · Accepted Answer

If r is negative, it indicates that the center of curvature is on the same side as the object. This is only possible for a concave surface.

An Object Faces a Spherical Refracting Surface