Light is incident along the normal to face ab of a glass prism of refractive index 1.54. find αmax, the largest value the angle α can have without any light being refracted out of the prism at face ac if the prism is immersed in water (with index of refraction 1.33). express your answer in degrees. ignore any reflections from the surface bc.

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.