RAJASTHAN PMT Rajasthan - PMT Solved Paper-1996

  • question_answer In bringing an \[\alpha \] particle from rest from a position where electric potential is 70 volt to another position where the potential is 50 volt, the K.E. will be:

    A)  \[40eV\]                            

    B)  \[40keV\]          

    C)         \[40MeV\]        

    D)         \[0eV\]

    Correct Answer: A

    Solution :

                    Work done in carrying an \[\alpha \] particle \[W=q\times ({{V}_{2}}-{{V}_{1}})\] \[=2e\times (70-50)=40eV\]                    


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