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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