1.

Rakesh has one bar magnet, two iron pieces and all of them are of the same size and shape. Which of the following can be used for identifying them? (i) Another magnet (ii) A compass (iii) A piece of  thread                

A.  Only (i) and (ii)
B.  Only (ii) and (iii)
C.  Only (i) and (iii)
D.  All the three
Answer» E.


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