1.

 If  the length of rod A is 3.25 ± 0.01 cm and that of B is 4.19 ± 0.01 cm then the rod B is longer than rod A by              [J&K CET 2005]

A.          0.94  ± 0.00 cm            
B.          0.94  ± 0.01 cm
C.          0.94  ± 0.02 cm            
D.         0.94  ± 0.005 cm
Answer» D.         0.94  ± 0.005 cm


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