The radii of curvature of each surface of a convex lens is `20 cm` and the refractive index of the material of the lens is `3//2` (i) Calculate its fo
The radii of curvature of each surface of a convex lens is `20 cm` and the refractive index of the material of the lens is `3//2` (i) Calculate its focal length (ii) If this is cut along the plane `AB`. What will be formed ? (iii) What happens if the lens is cut along `CD` ?
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