1.

The position vectors of radius are \[2\hat{i}+\hat{j}+\hat{k}\] and \[2\hat{i}-3\hat{j}+\hat{k}\] while those of linear momentum are \[2\hat{i}+3\hat{j}-\hat{k}.\] Then the angular momentum is                                    [BHU 1997]

A.                 \[2\hat{i}-4\hat{k}\]      
B.                 \[4\hat{i}-8\hat{k}\]
C.                 \[2\hat{i}-4\hat{j}+2\hat{k}\]    
D.                 \[4\hat{i}-8\hat{k}\]
Answer» C.                 \[2\hat{i}-4\hat{j}+2\hat{k}\]    


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