A plano-convex lens is made of glass of refractive index 1.5.The focal length of the lens…
Physics · Class 12 · CBSE — Ray Optics & Optical Instruments
A plano-convex lens is made of glass of refractive index 1.5.The focal length ƒ of the lens and radius of curvature R of its curved face are related as
- ƒ = 2R
- \(f = \frac{R}{2}\)
- ƒ = R
- \(f = \frac{3}{2R}\)
Answer
(C) ƒ = R
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