258CHAPTER 22 (b) As d. This is 0, 0R→→reasonable behavior. As nincreases, miRn111nddnn==−−decreases. This is As , increases. This is 1n→minR(c) ( )( )min1.40100 m350 m11.401ndnµ=R22.53Consider light from the bottom end of the wire that happens to be headed up along the surface of the wire before and after refraction with angle of incidence θ1and angle of refraction 260.0=°. Then, from Snell’s law, the
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