Solved papers for JEE Main & Advanced JEE Main Paper (Held On 11 April 2014)

done JEE Main Paper (Held On 11 April 2014) Total Questions - 1

• question_answer1) A thin bar of length L has a mass per unit length \[\lambda \], that increases linearly with distance from one end. If its total mass is M and its mass per unit length at the lighter end is \[{{\lambda }_{O}},\] then the distance of the centre of mass from the lighter end is:   [JEE Main Online Paper ( Held On 11 Apirl  2014 )
  A)
  \[\frac{L}{2}-\frac{{{\lambda }_{o}}{{L}^{2}}}{4M}\]                        
  done clear
  B)
  \[\frac{L}{3}+\frac{{{\lambda }_{o}}{{L}^{2}}}{8M}\]
  done clear
  C)
  \[\frac{L}{3}+\frac{{{\lambda }_{o}}{{L}^{2}}}{4M}\]       
  done clear
  D)
  \[\frac{2L}{3}-\frac{{{\lambda }_{o}}{{L}^{2}}}{6M}\]
  done clear
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