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(chatquestion)...214 Ray Optics and Optical Instruments 12. A black spot on the surface of a glass sphere of 3 is viewed from diametrical 2 refractive index u = opposite position. It appears to be at a distance of 10 cm from spot. Diameter of sphere is (1) 5 cm (2) 10 cm (3) 15 cm (4) 20 cm
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telegram-2983
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Jan 26, 2020
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balaji.thirumalai
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