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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
- For a normal eye, the cornea of eye provides a converging power 40 D and the least
- The drive shaft of an automobile rotates at 3600 rpm and transmits 80 HP
- A hemispherical bowl of radius R is rotating about its axis of symmetry
- An iron rod of volume 10⁻⁴ m³ and relative permeability 1000 is placed inside a long
- If the velocity of charged particle has both perpendicular and parallel components
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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