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NEET Sample Paper NEET Sample Test Paper-22

  • question_answer
    The angle between \[\vec{A}+\vec{B}\]and \[\vec{A}\times \vec{B}\] is

    A)  0                                

    B) \[\frac{\pi }{2}\]                     

    C)       \[\pi \]             

    D)      \[\frac{\pi }{4}\] 

    Correct Answer: B

    Solution :

    \[\vec{A}+\vec{B}\]lies in the plane containing\[\vec{A}\]and\[\vec{B}\] whereas \[\vec{A}\times \vec{B}\]is directed along the normal to the plane containing \[\vec{A}\]and \[\vec{B}.\] Hence, the correction option is [b].


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