JEE Main & Advanced Physics Two Dimensional Motion Question Bank Self Evaluation Test - Motion in a Plane

  • question_answer
    Which of the following is correct?

    A) \[\vec{A}\,.\,\vec{B}\ne \vec{B}\,.\,\vec{A}\]

    B) \[\vec{A}\,.(\vec{B}+\vec{C})=\vec{A}\,.\,\vec{B}+\vec{C}\]

    C) \[\vec{A}\times \vec{B}\ne \vec{B}\times \vec{A}\]

    D) \[\vec{A}\,.(\vec{B}+\vec{C})\ne \vec{A}\,.\,\vec{B}+\vec{A}\,.\,\vec{C}\]

    Correct Answer: C

    Solution :

    [c] Scalar product is distributive over addition. \[\overrightarrow{A}\times \overrightarrow{C}=AC\,\sin 0{}^\circ =0\]


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