At what position will an object be placed in front of a concave mirror in order to obtain an image at infinity?
A
At the pole of the mirror
B
At the principal focus
C
at the center of the curvature
D
Between the principal focus and the center of curvature
Verified Correct Answer: B.
Physical Principles & Numerical Solution
For a concave mirror to produce an image at infinity, the image has to be place at the principal focus of the mirror
Source: Myschool Past Questions Archive (Record #12283)