Optics Question 393
Question: The focal length of the objective and eye piece of a telescope are respectively 60 cm and 10 cm. The magnitude of the magnifying power when the image is formed at infinity is
[MP PET 1991]
Options:
A) 50
B) 6
C) 70
D) 5
Show Answer
Answer:
Correct Answer: B
Solution:
$ m=\frac{f _{o}}{f _{e}}=\frac{60}{10}=6 $ .
