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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
11 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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