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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.
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A body of mass 3 kg is under a constant force which cause a displacement
- What is the wavelength of light for the least energetic photon emitted
- A galvanometer is converted into an ammeter by connecting
- The number of possible natural oscilations of air column in a pipe closed
- Two thin dielectric slabs of dielectric constants K₁ and K₂, (K₁ < K₂) are inserted
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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