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If the absolute refractive indicec of water and glass are 4/3 and 3/2 respectively, then what will be the ratio of velocity of light in water to that of glass ? Page 45 Chapter - 2.Reflection and Refraction

Answer»

9/8Explanation: Refractive INDEX can be DEFINED as the ratio of the SPEED of light in vacuum and the speed of light in that particular medium.RI(glass) = 3/2C/v(glass) = 3/2 --- (1)RI(WATER) = 4/3C/v(water) = 4/3 --- (2)Dividing (1) by (2)v(water) / v(glass) = 9/8



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