1.

The radius of nucleus of silver (atomic number = 47) is \[3.4\times {{10}^{-14}}m\]. The electric potential on the surface of nucleus is \[(e=1.6\times {{10}^{-19}}C)\]                                                       [Pb. PET 2003]

A.                    \[1.99\times {{10}^{6}}\,volt\]
B.                                      \[2.9\times {{10}^{6}}\,volt\]
C.                    \[4.99\times {{10}^{6}}\,volt\]
D.                                      \[0.99\times {{10}^{6}}\,volt\]
Answer» B.                                      \[2.9\times {{10}^{6}}\,volt\]


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