What should be the minimum thickness of a half-wave plate made of calc – McqOptions

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1.	What should be the minimum thickness of a half-wave plate made of calcite for the light of wavelength 5500 ? The principal refractive indices are 1.652 and 1.488.
A.	1.234 m
B.	1.676 m
C.	1.956 m
D.	2.165 m
Answer» D. 2.165 m

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