Solved papers for JEE Main & Advanced JEE Main Paper (Held On 25 April 2013)

done JEE Main Paper (Held On 25 April 2013) Total Questions - 2

• question_answer1)                 A spherical balloon is being inflated at the rate of 35cc/min. The rate of increase in the surface area (in\[{{\operatorname{cm}}^{2}}/\min .\]) of the balloon when its diameter is 14 cm, is     JEE Main Online Paper ( Held On 25  April 2013 )
  A)
                  10          
  done clear
  B)
                  \[\sqrt{10}\]
  done clear
  C)
                  \[100\] 
  done clear
  D)
                                         \[10\sqrt{10}\]
  done clear
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• question_answer2)                 If an equation of a tangent to the curve,\[y=\cos (x+y),-1\le x\le 1+\pi \], is \[x+2y=k\]then \[k\]is equal to     JEE Main Online Paper ( Held On 25  April 2013 )
  A)
                  1                                             
  done clear
  B)
                                         2
  done clear
  C)
                                         \[\frac{\pi }{4}\]                                              
  done clear
  D)
                                         \[\frac{\pi }{2}\]              
  done clear
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