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A stationary radioactive nucleus of 210 units disintegrates into alpha particle of mass 4 units and residual nucleus of mass 206 units. If the kinetic energy of the alpha particle is E, the kinetic energy of the residual nucleus is... 1) 2/105 E 2) 2/103 E 3) 103/105 E 4) 103/2 E Plz provide solution...for this question...

A stationary radioactive nucleus of 210 units disintegrates into alpha particle of mass 4 units and residual nucleus of mass 206 units. If the kinetic energy of the alpha particle is E, the kinetic energy of the residual nucleus is...
1) 2/105 E
2) 2/103 E
3) 103/105 E
4) 103/2 E
Plz provide solution...for this question...
 

Grade:12th pass

1 Answers

harshin nechooli
121 Points
2 years ago
Hear initially we have to assume that the Atom was stationary and then by conservation of momentum you will get the velocity of larger particle and smaller particles and then released their velocities can find the kinetic energy o. the particle that is 
4u =206v   and 2u^2 =E   then ans is option 2 
 
HAR 

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