1.

Figure shows a cubical room ABCD with the wall CD as a plane mirror. Each side of the room is 3m. We place a camera at the midpoint of the wall AB. At what distance should the camera be focussed to photograph an object placed at A

A.             1.5 m
B.             3 m
C.             6 m
D.            More than 6 m
Answer» E.


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