Light: Refraction Class 10 Problems for Practice
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0:12 Introduction
3:13 Q1) Calculate the speed of light in water if the refractive index of water is 4/3. Given the speed of light in air is 3x108 m/s.
08:51 Q2) A ray of light passes from air to glass (n = 1.5) at an angle of 30ℴ. Calculate the angle of refraction.
17:13 Q3) The refractive index of diamond is 2.47 and that of glass is 1.51. How much faster does light travel in glass than in diamond?
25:22 Q4) The refractive index of glycerin is 1.46. What is the speed of light in air if its speed in glycerin is 2.05 x 108 m/s?
28:40 Q5) A piece of glass has a refractive index of 1.6 and that of diamond is 2.4. Calculate the refractive index of diamond with respect to glass?
32:35 Q6) A ray of light is traveling from glass to air. The angle of incidence in glass is 350 and of refraction in air is 600. What is the refractive index of glass with respect to air?
40:21 Q7) A ray of light is travelling from air to water. What is the angle of incidence in air, if the angle of refraction in water is 410? The refractive index of water is 1.32.
43:42 Q8) A water tank appears to be 4m deep when viewed from the top. If the refractive index of water is 4/3, what is the actual depth of the tank?
49:38 Q9) A jar 15 cm long is filled with transparent liquid. When viewed from top, the bottom appears to be 12 cm below. What is the refractive index of liquid?
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