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 radioactive nuclei with decay constant 0.5/s is being produced at a constant rate of 100 nuclei/s. If at t = 0 there were no nuclei, the time when there are 50 nuclei is:   [JEE Main Online Paper ( Held On 11 Apirl  2014 )
  A)
  1s                                           
  done clear
  B)
  \[2\ln \left( \frac{4}{3} \right)s\]
  done clear
  C)
  \[\ln 2s\]                             
  done clear
  D)
  \[\ln \left( \frac{4}{3} \right)s\]
  done clear
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