Sapphire has an index of refraction of 1.80. What is its critical angle of incidence when in air? 1.16° 55.6° 33.7° 65.2° 87.4° Light travels from leaded glass into water with an angle of refraction of 35.4 °. The angle of incidence is 26.9o. If the refractive index of water is 1.33, what is the refractive index of the leaded glass?

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter25: Reflection And Refraction Of Light
Section: Chapter Questions
Problem 25P: 14. A ray of light strikes the midpoint of one face of an equiangular (60°−60°−60°) glass prism (n =...
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Sapphire has an index of refraction of 1.80. What is its critical angle of incidence when in air?

  1. 1.16°
  2. 55.6°
  3. 33.7°
  4. 65.2°
  5. 87.4°

Light travels from leaded glass into water with an angle of refraction of 35.4 °. The angle of incidence is 26.9o. If the refractive index of water is 1.33, what is the refractive index of the leaded glass?

    1. 1.04
    2. 1.50
    3. 1.70
    4. 1.90
    5. 1.33

Correct answers are noted can you help expalin why?

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