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why does a proton hits the target (nucleus), inspite that nucleus is also positively charged

why does a proton hits the target (nucleus), inspite that nucleus is also positively charged

Grade:12th Pass

1 Answers

Aman Bansal
592 Points
9 years ago

Dear Himanshu,

 for the particle to collide the 133Ba ion the kineticenergy must be given to over come the Columbic potential of the Banucleus , and by the time the proton hits the nucleus it mustpocess the energy of 19 Mev
 for this the total kinetic energy of the proton that isneeded for the proton
                      K = V + 19MeV
  V = Coloumbic  potential energy between the protonand the barium nucleus   
      = Qq.k / r
 Q = charge of the Ba nuclues
 q = charge of the proton
  k =  coloumbic constant
 r  = radis of  the Ba nucleus = ro* A^1/3
 ro = 1.2 *10^15 m .
 A = mass number of Ba

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