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JIPMER Jipmer Medical Solved Paper-2000

  • question_answer
    A spring of force constant k is cut into three equal parts and then they are suspended from the same point. The force constant of the system is:

    A)  k                                            

    B)         3k                         

    C)         9k                                         

    D)         \[\frac{k}{9}\]

    Correct Answer: C

    Solution :

    We know that when a spring is cut into three equal parts, then the force constant of each part is 3k. Now these are suspended from the same point as a result of this these are connected in parallel. Hence \[{{k}_{\text{parallel}}}=3k+3k+3k=9k\]


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