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41. Example of uniaxial crystal is
A. mica
B. quartz
C. topaz
D. selenite
Explanation:
42. Nicol prism is made up of
A. Nicol crystal
B. calcite
C. mica
D. quartz
Explanation:
43. The phenomenon that takes place in a Nicol prism is
A. dispersion
B. scattering
C. deviation
D. double refraction
Explanation:
44. Example of biaxial crystal is
A. calcite
B. quartz
C. ice
D. topaz
Explanation:
45. Brewster’s law in polarization of light by reflection states that
A. µ = 1/tan ip
B. tan ip = µ
C. tan r = µ
D. tan-1(ip) = µ
Explanation:
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