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 hot body, obeying Newton's law of cooling is cooling down from its peak value \[80{}^\circ C\] to an ambient temperature of \[30{}^\circ C\]. It takes 5 minutes in cooling down from \[80{}^\circ C\] to \[40{}^\circ C\]. How much time will it take to cool down from \[42{}^\circ C\] to \[32{}^\circ C\]? (Given In 2 = 0.693, In 5 = 1.609)   [JEE Main Online Paper ( Held On 11 Apirl  2014 )
  A)
  3.75 minutes     
  done clear
  B)
  8.6 minutes
  done clear
  C)
  9.6 minutes                       
  done clear
  D)
  6.5 minutes
  done clear
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