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Two thin lenses when placed in contact, then the power of combination is +10 D. If they are kept 0.25 m apart, then the power reduces to +6 D. The focal lengths of the lenses (in m) will be
Options
(a) 0.5 and 0.125
(b) 0.5 and 0.75
(c) 0.125 and 0.75
(d) both have the same focal length 1.25
Correct Answer:
0.5 and 0.125
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - For an ideal gas of diatomic molecules
- A thin ring of radius R meter has charge q coulomb uniformly spread on it
- A circular disc X of radius R is made from an iron plate of thickness t and another disc
- A mass m moves in a circle on a smooth horizontal plane with velocity v₀
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- For an ideal gas of diatomic molecules
- A thin ring of radius R meter has charge q coulomb uniformly spread on it
- A circular disc X of radius R is made from an iron plate of thickness t and another disc
- A mass m moves in a circle on a smooth horizontal plane with velocity v₀
- Vectors A⃗, B⃗ and C⃗ are such that A⃗ . B⃗ = 0 and A⃗ . C⃗ = 0 Then the vector parallel
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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