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The radius of the convex surface of a plano-convex lens is 20 cm and the refractive index of material of the lens is 1.5. The focal length of lens is
Options
(a) 30 cm
(b) 50 cm
(c) 20 cm
(d) 40 cm
Correct Answer:
40 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 tuning fork of frequency x produces 4 beats with a source of 256 Hz and 8 beats
- Angle of minimum deviation for a prism of reractive index 1.5 equal to the angle
- In a tangent galvanometer, a current of 0.1 A produces a deflection of 30⁰.
- Two particles which are initially at rest, move towards each other
- Fission of nuclei is possible because the binding energy per nucleon in them
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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