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Grade 12th passModern Physics

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...

Profile image of VIDYARANI SINGADI
7 Years agoGrade 12th pass
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1 Answer

Profile image of harshin nechooli
ApprovedApproved Tutor Answer7 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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