32. At Brewster angle the reflection is exactly linearly polarized. a) True b) F

Question

32. At Brewster angle the reflection is exactly linearly polarized. a) True b) False 33. Suppose your source of light is natural, that is from the Sun. This light impinges on a set of linear polarizers that are crossed at 90 with respect to each other. Looking at the polarizers you should see no light trough. a) True b) False 34. Suppose your source of light is a perfectly linearly polarized laser. This light impinges on a set of linear polarizers that are crossed at 90 with respect to each other. Looking at the polarizers you should see no laser light trough. a) True b) False 35. When light reflects of a metal there would be no Brewster angle because the conducting electrons will manage to re-radiate in any possible direction. a) True b) False 36. Consider the electric field oscillating parallel to the plane of incidence, that reflects of a non- conducting material. At Brewster angle the electric field oscillating parallel to the plane of incidence will be maximum. a) True b) False 37. Consider the electric field oscillating perpendicular to the plane of incidence, that reflects of a non-conducting material. At Brewster angle the electric field oscillating perpendicular to the place of incidence will be minimum. a) True b) False 38 The transmittance T to unpolarized light of a linear polarizer is rated as 33%. The principal transmittance T, is 0.165 a) True b) False 6 of 9

Explanation / Answer

32. True

33.true

34.True

35.False. for metal there is a pseduo Brewster angle (see this paper >On Brewster’s angle of metals ,Bernd Hüttner)

36.false . perpendicular component will be maximum .

37.True

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