第八章测试1.The direction of polarization of an electromagnetic wave is defined to be the direction of the magnetic-field vector. （ ）
A:对 B:错
答案:B
2.when the angle of incidence is equal to the polarizing angle (Brewster’s angle) the reflected ray and the refracted ray are perpendicular to each other. （ ）
A:错 B:对 3.The unpolarized light with intensity of is incident on two parallel ideal polarizers, if the angle between the axes of the two filters is 60º, the intensities transmitted through the second polarizer is （ ）.
A: B: C:0 D: 4.Malus’s law is expressed as: （ ）
A: B: C: D: 5.What is the Brewster angle when light is incident from glass ( )onto the surface of air ( )？（ ）
A:57º B:60º C:33º D:30º
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