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CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2002

  • question_answer
    If \[\vec{a},\vec{b},\vec{c}\]are mutually perpendicular unit vectors, then \[|\vec{a}+\vec{b}+\vec{c}|\]is equal to:

    A)  3                                            

    B) \[\sqrt{3}\]

    C)  zero                                     

    D)  1

    Correct Answer: B

    Solution :

    \[|\vec{a}+\vec{b}+\vec{c}|=\sqrt{1+1+1}=\sqrt{3}.\]


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