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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
- Velocities of sound measured in hydrogen and oxygen gas at a given temperature
- A ballon rises from rest with a constant acceleration g/8. A stone is released
- The velocity of a particle at an instant is 10 ms⁻¹ and after 5 s the velocity
- What are the unit of K = 1 / (4 π ?￢ﾂﾒ)
- The magnetic susceptibility of a material of a rod is 449. Permeability of vaccum
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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