A ray of light is incident on a glass prism (n = 1.6) with an angle of incidence 0, emerges from the opposite side of the prism with an angle 0,. The apex angle of the prism is 60°. The deviation angle, 8, between the incident ray and the emerging ray is then: = 40°. The ray 60° 6, = 40° %3D Nair =1 O 21.7 O 51.3 44.5 38.4° 13.8
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