Solved papers for JEE Main & Advanced JEE Main Paper (Held On 19 May 2012)

done JEE Main Paper (Held On 19 May 2012) Total Questions - 1

• question_answer1) A moving particle of mass m, makes a head on elastic collision with another particle of mass 2m, which is initially at rest. The percentage loss in energy of the colliding particle on collision, is close to     JEE Main  Online Paper (Held On 19  May  2012)
  A)
  33%                                       
  done clear
  B)
                         67%
  done clear
  C)
                         90%    
  done clear
  D)
                         (d) 10%
  done clear
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