When an astronomical telescope is in normal adjustment, the focal length of the objective lens is 50cm and that of the eyepiece is 2.5om. What is the distance between the lenses?
A
20.0cm
B
47.5cm
C
50.0cm
D
52.5cm
E
125.0cm.
Verified Correct Answer: D.
Physical Principles & Numerical Solution
Distance between lens = f0 + fe = 52.5cm
Source: Myschool Past Questions Archive (Record #24271)