1.

The resultant of two vectors A and B is perpendicular to the vector A and its magnitude is equal to half the magnitude of vector B. The angle between A and B is

A.   \[\text{12}0{}^\circ \]   
B.   \[\text{15}0{}^\circ \]
C. If assertion is true but reason is false.
D.   None of these
Answer» C. If assertion is true but reason is false.


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