1.

In an hydrogen atom, the electron revolves around the nucleus in an orbit of radius \[0.53\times {{10}^{-10}}m\]. Then the electrical potential produced by the nucleus at the position of the electron is                                              [Pb. PMT 2001]

A.            ? 13.6 V
B.                                      ? 27.2 V
C.            27.2 V                                      
D.            13.6 V
Answer» D.            13.6 V


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