Solved papers for JEE Main & Advanced JEE Main Paper (Held on 7 May 2012)

done JEE Main Paper (Held on 7 May 2012) Total Questions - 2

• question_answer1) A structural steel rod has a radius of 10 mm and length of 1.0 m. A 100 kN force stretches it along its length. Young's modulus of structural steel is\[2\times {{10}^{11}}N{{m}^{-2}}.\]The percentage strain is about   JEE Main Online Paper (Held On 07 May 2012)
  A)
  0.16%     
  done clear
  B)
                                                         0.32%
  done clear
  C)
                         0.08%                                   
  done clear
  D)
                         0.24%
  done clear
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• question_answer2) The load versus elongation graphs for four wires of same length and made of the same material are shown in the figure. The thinnest wire is represented by the line   JEE Main Online Paper (Held On 07 May 2012)
  A)
  OA
  done clear
  B)
                         OC
  done clear
  C)
                         OD                                         
  done clear
  D)
                         OB
  done clear
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