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JEE Main & Advanced Physics Vectors Sample Paper Topic Test- Vectors

  • question_answer
    The component of \[(\hat{i}+\hat{j})\] along \[(\hat{i}-\hat{j})\] is

    A) 0

    B) \[\frac{1}{\sqrt{2}}(\hat{i}-\hat{j})\]

    C) \[\frac{1}{\sqrt{2}}(\hat{i}+\hat{j})\]

    D) \[\frac{\hat{i}-\hat{j}}{2}\]

    Correct Answer: A

    Solution :

    [a] \[(\hat{i}+\hat{j})\cdot (\hat{i}-\hat{j})=0,\] so, they remain at right angles to each other. So component is zero.


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