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

  • question_answer
    Assertion             :       The spring constant of a spring is k. When it is divided into n equal parts, then spring constant of one piece is k/n. Reason                 :       The spring constant is independent of material used for the spring.

    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: E

    Solution :

                       Spring constant \[\propto \frac{1}{\text{Length of spring}}\]                    Þ \[k'=\frac{k}{n}\] Also, spring constant depends on material properties of the spring. Hence assertion is false, but reason is true.


You need to login to perform this action.
You will be redirected in 3 sec spinner