A transparent cylinder has its right half polished so as to act as a m – McqOptions

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1.	A transparent cylinder has its right half polished so as to act as a mirror. A paraxial light ray is incident from left that is parallel to principal axis, exits parallel to the incident ray as shown. The refractive index n of the material of the cylinder is:
A.	1.2
B.	1.5
C.	1.8
D.	2
Answer» E.

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