JEE Main & Advanced Physics Vectors Question Bank Fundamentals of Vectors

  • question_answer The vector projection of a vector \[3\hat{i}+4\hat{k}\]on y-axis is                                                        [RPMT 2004]

    A)            5    

    B)            4

    C)            3    

    D)             Zero

    Correct Answer: D

    Solution :

                 As the multiple of \[\hat{j}\] in the given vector is zero therefore this vector lies in XZ plane and projection of this vector on y-axis is zero.


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