2. Solved Papers
  3. DUMET Medical

DUMET Medical DUMET Medical Solved Paper-2002

  • question_answer
    In a hydrogen atom, the electron revolves round the nucleus in an orbit of radius \[0.53\times {{10}^{-10}}m\]. The electric potential produced by the nucleus at the position of the electron is :

    A)  17.2V         

    B)  23.6V

    C)  13.6V        

    D)  27.2V

    Correct Answer: D

    Solution :

    The electric potential (V) at a point due to a test charge (q) at a distance r is \[V=\frac{1}{4\pi {{\varepsilon }_{0}}}\frac{q}{r}\] Given, \[r=0.53\times {{10}^{-10}}m\], \[q=1.6\times {{10}^{-19}}C\] \[\therefore \] \[V=\frac{9\times {{10}^{9}}\times 1.6\times {{10}^{-19}}}{0.53\times {{10}^{-10}}}\] V = 27.2 Volt


You need to login to perform this action.
You will be redirected in 3 sec spinner