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Two lenses of power 15 D and -3 D are placed in contact. The focal length of the combinations is
Options
(a) 10 cm
(b) 15 cm
(c) 12 cm
(d) 8.33 cm
Correct Answer:
8.33 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)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A beam of light of λ=600 nm from a distant source falls on a single slit 1 mm wide
- A ball rolls off the top of stair way with a horizontal velocity of magnitude 1.8 m/s
- A metal plate weighing 750g is to be electroplated with 0.05% of its weight of silver.
- Water rises in a vertical capillary tube up to a height of 2.0 cm.
- The electric field in a certain region is given by E=5i ̂-3ĵ kV/m. The potential
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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