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A Galilean telescope has an objective of focal length 100 cm and magnifying power 50. The distance between the two lenses in normal adjustment will be
Options
(a) 96 cm
(b) 98 cm
(c) 102 cm
(d) 104 cm
Correct Answer:
98 cm
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
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A Galilean telescope has an objective of focal length 100 cm and magnifying power 50. The distance between the two lenses in normal adjustment will be
Options
(a) 96 cm
(b) 98 cm
(c) 102 cm
(d) 104 cm
Ans:
fo= 100 cm
M=50
fo/fe = 50
fe=100/fo
fe=2
L=fo-fe
L=100-2
L=98cm