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Physics Chemistry

Entry Test MCQ :: Work And Energy


  Proton electron neutron and a particles have same momentum. Which of them have highest K.E?
[A]. Proton [B]. electron
[C]. neutron[D]. a-particle

Answer: Option B


saira said:    
 
Plz tell me how electron has highest k.e energy

ali said:    
 
according to equation 2mK.E=P^2 K.E is inversly proportional to mass if momentum is same. so electron ka mass is least so ke is maxx

tooba said:    
 
how is it possible if KE and mass are directly related?

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