1.

In a hydrogen atom, the distance between the electron and proton is \[2.5\times {{10}^{-11}}\,m\]. The electrical force of attraction between them will be                                                               [Pb. PMT 2000]

A. \[2.8\times {{10}^{-7}}\,N\]
B. \[3.7\times {{10}^{-7}}N\]
C. \[6.2\times {{10}^{-7}}N\]
D. \[9.1\times {{10}^{-7}}N\]
Answer» C. \[6.2\times {{10}^{-7}}N\]


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