JEE Main & Advanced Physics Vectors Question Bank Assertion and Reason

  • question_answer
    Assertion             :               Vector product of two vectors is an axial vector                 Reason                 :               If \[\vec{v}\] = instantaneous velocity, \[\vec{r}\]= radius vector and \[\vec{\omega }\] = angular velocity, then \[\vec{\omega }=\vec{v}\times \vec{r}.\]

    A)                 If both assertion and reason are true and the reason is the correct explanation of the assertion.

    B)                 If both assertion and reason are true but reason is not the correct explanation of the assertion.

    C)                 If assertion is true but reason is false.

    D)                 If the assertion and reason both are false.

    E)                 If assertion is false but reason is true.

    Correct Answer: C

    Solution :

                        \[\vec{v}=\vec{\omega }\times \vec{r}\]                 The expression \[\vec{\omega }=\vec{v}\times \vec{r}\] is wrong.


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