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. $



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