Solved papers for JEE Main & Advanced AIEEE Solved Paper-2011

done AIEEE Solved Paper-2011 Total Questions - 1

• question_answer1) The half life of a radioactive substance is 20 minutes. The approximate time interval \[({{t}_{2}}-{{t}_{1}})\] between the time \[{{t}_{2}}\] when \[\frac{2}{3}\] of its has decayed and time \[{{t}_{1}}\] when \[\frac{1}{3}\] of its had decayed is   AIEEE  Solved  Paper-2011
  A)
  28 min                     
  done clear
  B)
   7 min
  done clear
  C)
  14 min                     
  done clear
  D)
   20 min
  done clear
  View Answer play_arrow