JEE Main & Advanced Mathematics Vector Algebra Question Bank Modulus of vector Algebra of vectors

  • question_answer
    If \[\mathbf{a}+\mathbf{b}\] bisects the angle between a and b, then a and b are

    A) Mutually perpendicular         

    B) Unlike vectors

    C) Equal in magnitude

    D) None of these

    Correct Answer: C

    Solution :

    Equal in magnitude, as bisector \[=\frac{\mathbf{\hat{a}}+\mathbf{\hat{b}}}{\sqrt{2}}\] if \[|\mathbf{a}|=|\mathbf{b}|.\]


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