A glass sphere containing concentric alternate rings made of two different materials of Refractive indices 1.5 and 1.6 is ground into a equiconvex lens of radius of curvature 0.2 m. An object is placed at a distance of 0.5m from the lens. Does the lens produce a single image? If not how many images are produced and what is the separation between them?
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Question 2.4 A spherical conductor of radius 12 cm has a charge of 1.6 × 10–7C distributed uniformly on its surface. What is the electric ...
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