A reflecting telescope has its eyepiece unchanged while the primary mirror is…
PHYSICS · Single correct · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments
Problem
A reflecting telescope has its eyepiece unchanged while the primary mirror is replaced by another mirror of the same diameter but half the original focal length. How does the magnifying power of the telescope change?
(a) It becomes double its original value.
(b) It remains unchanged.
(c) It becomes half of its original value.
(d) It becomes four times its original value.