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A ray of light is incident normally on a plan mirror. If the incident ray is kept fixed ...

A ray of light is incident normally on a plan mirror. If the incident ray is kept fixed while the mirror is rotated through an angle of 30o, determine the initial and final angles of reflection respectively

A. 0o and 60o
B. 90o and 30o
C. 0o and 30o
D. 90o and 60o




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