Light is incident along the normal to face AB of a prism that has a refractive index n and an angle a = 30°, as shown in (Figure 1). When the prism is in air, the light undergoes total internal reflection. However, when the prism is immersed in water, a faint refracted ray emerges at an angle of 74 ° to the normal of face AC. The index of refraction of water at this temperature is 1.333. Part A Determine n Express your answer to three significant figures. n = Submit Part B 15. ΑΣΦ What material was used to make the prism? O quartz O diamond O zircon Request Answer Submit crown glass Previous Answers ?

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