Solved papers for JEE Main & Advanced JEE Main Solved Paper-2014

done JEE Main Solved Paper-2014 Total Questions - 1

• question_answer1) When a rubber-band is stretched by a distance x, it exerts a restoring force of magnitude\[F=ax+b{{x}^{2}}\]where a and b are constants. The work done in stretching the unstretched rubber-band by Lis :   JEE Main  Solved  Paper-2014
  A)
  \[\frac{a{{L}^{2}}}{2}+\frac{b{{L}^{3}}}{3}\]         
  done clear
  B)
  \[\frac{1}{2}\left[ \frac{a{{L}^{2}}}{2}+\frac{b{{L}^{3}}}{3} \right]\]
  done clear
  C)
   \[a{{L}^{2}}+b{{L}^{3}}\]                             
  done clear
  D)
   \[\frac{1}{2}(a{{L}^{2}}+b{{L}^{3}})\]
  done clear
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