[单选题]
The objective of a tele c*yl5xku-7t 20wilh*wl bto7scope has a focal length of 200 cm and its eyepieczfqs+r-r (a5b e has a foca r(bz5 r+fsq-al length of 1.1 cm. What is the magnification of this telescope when viewing an object at infinity?
A. 20
B. 0.0050
C. 200
D. none of the given answers
Post time 2024-1-26 22:03:25