The following figure shows the multiple ...

The following figure shows the multiple reflections of a light ray along a glass corridor where the walls are either parallel or perpendicular to one another . If the angle of incidence at point P is `30^@` , then the angles of reflection of the light ray at points Q,R,S and T respectively are

A

`30^@,30^@,30^@,30^@`

B

`30^@,60^@,30^@,60^@`

C

`30^@,60^@,60^@,30^@`

D

`60^@,60^@,60^@,60^@`

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The correct Answer is:

C

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