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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
- The speed of electromagnetic waves in vaccum is equal to
- A particle moves in a straight line with a constant acceleration
- Energy bands in solids are a consequence of
- Amout of heat required to raise the temperature of a body through 1 K is called its
- A battery having e.m.f. 4 volt and internal resistance 0.5 Ω is connected
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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