Solved papers for JEE Main & Advanced JEE Main Paper (Held On 26 May 2012)

done JEE Main Paper (Held On 26 May 2012) Total Questions - 2

• question_answer1) The door of a working refrigerator is left open in a well insulated room. The temperature of air in the room will   JEE Main Online Paper (Held On 26-May-2012)  
  A)
  decrease
  done clear
  B)
                          increase in winters and decrease in summers
  done clear
  C)
  remain the same             
  done clear
  D)
                         increase
  done clear
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• question_answer2) An ideal monatomic gas with pressure P, volume V and temperature T is expanded isothermally to a volume 2V and a final pressure \[{{P}_{i}}.\] If the same gas is expanded adiabatically to a volume 2V, the final pressure is \[{{P}_{a}}.\]The ratio \[\frac{{{P}_{a}}}{{{P}_{i}}}\]is.   JEE Main Online Paper (Held On 26-May-2012)  
  A)
  \[{{2}^{-1/3}}\]                                
  done clear
  B)
  \[{{2}^{1/3}}\]
  done clear
  C)
  \[{{2}^{2/3}}\]                                  
  done clear
  D)
  \[{{2}^{-2/3}}\]
  done clear
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