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Q.

The electric potential at the surface of an atomic nucleus (Z=50) of radius 9.0x10-15 m

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a

9 x 105 volt

b

9 volt

c

8 x 106 volt

d

80 volt

answer is B.

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Detailed Solution

V=14πε0qr;V=9×109×50×1.6×10199×1015
=8 x 106 volt

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