9_Ch 22 College Physics ProblemCH22 Reflection and Refraction of Light

9_Ch 22 College Physics ProblemCH22 Reflection and Refraction of Light

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Reflection and Refraction of Light 241 22.9 (a) From Snell’s law, ( ) 11 2 2 1.00 sin30.0 sin 1.52 sin sin19.24 n n θ ° == = ° (b) 0 2 2 632.8 nm 417 nm 1.52 n λ = (c) 8 14 9 0 3.00 10 m s 4.74 10 Hz 632.8 10 m c × = × × f in air and in syrup (d) 8 8 2 2 3.00 1.98 1.52 c n × = × v 22.10 (a) When light refracts from air ( ) 1 1.00 n = into the Crown glass, Snell’s law gives the angle of refraction as 1 2 sin sin25.0 2 Crown glass n    For first quadrant angles, the sine of the angle increases as the angle increases. Thus, from the above equation, note that will increase when the index of refraction of the Crown glass decreases. From Figure 22.14, this means that the longer wavelengths have the largest angles of refraction, and deviate the least from the
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