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Question 4: NCERT Solutions for 12th Class Physics: Chapter 9-Ray Optics and Optical Instruments
Figures (a) and (b) show refraction of a ray in air incident at 60° with the normal to a glass- air and water-air interface, respectively. Predict the angle of refraction in glass when the angle of incidence in water is 45° with the normal to a water-glass interface (figure c).
