Question

An atom of atomic number Z = 50 is having nuclear radius = 9 × 10–13 cm. Potential at the surface of the nucleus is

Options :

  1. 4 × 106 V

  2. 8 × 106 V

  3. 106 V

  4. 105 V

Show Answer

Answer :

8 × 106 V

Solution :

V = k Q r

= 9 × 10 9 × 50 × 1.6 × 10 19 9 × 10 15

= 8 × 106 V

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