A Galileo telescope has an objective of focal length 100 cm & magnifying power 50. The distance between the two lenses in normal adjustment will be
Text Solution
Verified by ExpertsThe correct answer is:
C
In normal adjustment
m = – 
so 50 = – 
⇒ f e = –2 cm
( eyepiece is concave lens)
and L = f 0 + f e = 100 – 2 = 98 cm
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