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VIT Engineering VIT Engineering Solved Paper-2014

  • question_answer
    A proton and an a-particle, accelerated through the same potential difference, enter a region of uniform magnetic field normally. If the radius of the proton orbit is 10 cm, then radius of a-particle is

    A) 10 cm                   

    B) \[10\sqrt{2}cm\]

    C) 20 cm                   

    D) \[5\sqrt{2}cm\]

    Correct Answer: B

    Solution :

    Radius of path \[E=V+{{l}_{r}}\]                      \[{{\lambda }_{red}}>{{\lambda }_{violet}}\]                       \[\lambda \]                       \[r=\frac{mV}{B}=\frac{V}{\left( \frac{e}{m} \right)B}\]0


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