The radii of curvature of the surfaces of a double convex lens are 20 cm and 40 cm…
Physics · Class 12 · CBSE — Ray Optics & Optical Instruments
The radii of curvature of the surfaces of a double convex lens are 20 cm and 40 cm respectively, and its focal length is 20 cm.
What is the refractive index of the material of the lens?
What is the refractive index of the material of the lens?
Answer
(C)
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