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18_Chapter 22 HomeworkCH22 Reflection and Refraction of Light

# 18_Chapter 22 HomeworkCH22 Reflection and Refraction of Light

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250 CHAPTER 22 22.34 When surrounded by air ( , the critical angle of a material is ) 2 1.00 n = 1 1 1 in material n n 2 1 sin s c n θ = = (a) For diamond, 1 1 sin 24.4 2.419 c θ = = ° (b) For flint glass, 1 1 sin 37.0 1.66 c θ = = ° 22.35 When surrounded by water ( ) 2 1.333 n = , the critical angle of a material is 1 1 2 1 sin sin c n θ = = 1.333 material n n (a) For diamond, 1 1.333 sin 33.4 2.419 c θ = = ° (b) For flint glass, 1 1.333 sin 53.4 1.66 c θ = = ° 22.36 Using Snell’s law, the index of refraction of the liquid is found to be ( ) 1.00 sin30.0 sin 1.33 sin sin22.0 air i liquid r n n θ θ ° = = = ° Thus, 1 1 1.00 sin sin 48.5 1.33 air c liquid n n θ
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