1.

Constantly looking at the monitor can put strain on your eyes and it may also causes blurred vision, slow in focusing, double vision, headache etc. So you should maintain at a distance of ______ inches from monitor.

A.  15-20       
B.  20-25
C.  25-30       
D.  35-50
E.  None of these
Answer» C.  25-30       


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