Light is incidentalong the normal to face AB of a glass prism of refractive inde

Question

Light is incidentalong the normal to face AB of a glass prism of refractive index1.51, as shown in the figure. (Intro 1figure) Part A Express your answer in degrees.Ignore any reflections from the surface BC. Part B This part will be visible after youcomplete previous item(s). = Light Refracted through a Prism Light is incidentalong the normal to face AB of a glass prism of refractive index1.51, as shown in the figure. (Intro 1figure) Part A Find alpha max , the largest value of the angle alpha such that no light is refracted out of the prism at faceAC if the prism is immersed in air. Express your answer in degrees.Ignore any reflections from the surface BC. alpha max = degrees Part B This part will be visible after youcomplete previous item(s).

Explanation / Answer

For there is no refraction through th eface AB the angle ofincidence on the face AB inside the prism should be equal to thecritical angle. Therefore max = 90-C                        = 90 - sin-1(1/1.51)                         =90 -41.47                        = 48.53o

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