JEE Main & Advanced Sample Paper JEE Main Sample Paper-1

  • question_answer
    Directions: Question No. 75 are based on the following paragraph. Let \[\overrightarrow{a},\overrightarrow{b}\]and \[\overrightarrow{c}\]be three vectors such that \[|\overrightarrow{a}|=|\overrightarrow{b}|=|\overrightarrow{c}|=4\]and angel between \[\overrightarrow{a}\]and \[\overrightarrow{b}\]is \[\frac{\pi }{3}\]and angel between \[\overrightarrow{b}\]and \[\overrightarrow{c}\]is \[\frac{\pi }{3}\]and angle between \[\overrightarrow{c}\]and \[\overrightarrow{a}\]is \[\frac{\pi }{3}\] The volume of the  parallelepiped whose adjacent edges are represented by the vectors \[\overrightarrow{a},\overrightarrow{b}\] and \[\overrightarrow{c}\] is                                     

    A)  \[24\sqrt{3}\]                  

    B)  \[32\sqrt{3}\]

    C)  \[24\sqrt{2}\]                  

    D)  \[32\sqrt{2}\]

    Correct Answer: D

    Solution :

    Volume of the parallelepiped \[=|[\vec{a}\,\vec{b}\,\vec{c}]|=32\sqrt{2}\]


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