2. Sample Papers
  3. NEET

NEET Sample Paper NEET Sample Test Paper-77

  • question_answer
    The spring constant of a spring K, when it is divided into n equal parts, then the spring constant of one piece is

    A)  K/n                             

    B)  n K

    C)  \[\frac{nK}{(n+1)}\]                 

    D)  \[\frac{(n+1)\,K}{n}\]

    Correct Answer: B

    Solution :

    When a spring is cut into n equal parts, the spring constant k of each part is given by \[\frac{1}{K}=\frac{1}{K}+\frac{1}{K}+\frac{1}{K}......\,\,n\,\,terms\,\,=\,\,\frac{n}{K}\]\[\operatorname{k}\,\,=\,\,nK\] - k is spring constant of one small piece - k is spring constant of original.


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