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UPSC Civil Services 2011 Prelims General Studies Paper II

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Question : 38

Total: 80

Consider the figure given below and answer the item that follows:

In the figure shown above, OP‌1 and OP‌2 are two plane mirrors kept perpendicular to each other. S is the direction of a beam of light falling on the mirror OP‌1 . The direction of the reflected beam of light from the mirror OP‌2 will be:

Perpendicular to the direction S.
At 45° to the direction S.
Opposite and parallel to the direction S.
At 60° to the direction S.

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