Optics Question 404
Question: In an astronomical telescope, the focal length of the objective lens is 100 cm and of eye-piece is 2 cm. The magnifying power of the telescope for the normal eye is
[MP PET 1997]
Options:
A) 50
B) 10
C) 100
D) $ \frac{1}{50} $
Show Answer
Answer:
Correct Answer: A
Solution:
$ m=-\frac{f _{o}}{f _{e}}=-\frac{100}{2}=-50. $
