p34_046 - 46(a Approximating n = 1 for air we have n1 sin 1...

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46. (a) Approximating n =1forair,wehave n 1 sin θ 1 = (1) sin θ 5 = 56 . 9 = θ 5 and with the more accurate value for n air in Table 34-1, we obtain 56 . 8 . (b) Eq. 34-44 leads to
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