JEE Main & Advanced Physics Simple Harmonic Motion Question Bank Assertion and Reason

  • question_answer
    Assertion             :       In simple harmonic motion, the velocity is maximum when acceleration is minimum                              Reason                 :       Displacement and velocity of S.H.M. differ is phase by \[\pi /2\]        [AIIMS 1999]

    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: B

    Solution :

                \[x=a\sin \omega t\] and \[v=\frac{dx}{dt}=a\omega \cos \omega \,t\] It is clear phase difference between ?x? and ?a? is \[\pi /2.\]


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