What is the electric potential at the surface of an iron nucleus? The radius of the nucelus is `4.2 xx 10^-15` m and the atomic number is 26.

Calculate the electric potential at the surface of a gold nucleus. Given radius of nucleus = 6.6 xx 10^-15 m and atomic wight of gold is 79.

The electric potential at the surface of an atomic nucleus (Z=50) of radius 9.0 xx 10^-15 m is

What is the potential gradient ( in Vm^-1 ) at a distance o 10^-12 m from the centre fo the platinum nucleus? What is the potential gradient at the surface of nucleus? Atomic number of platinum is 78 and the radius of platinum nucleus may be taken as 5 xx 10^-15 m.

Calculate the radius of oxygen nucleus .Given that R_0 = 1.1 xx 10^(-15) m .

An electron is circulating around the nucleus of a hydrogen ato in a circular orbit of radius 5.3 cxx10^-11 m. Calculate the electric potential energy of the atom in eV. What would be the electric potential due to a helium nucleus at the same radius. Given, that (4piepsilon_0)^-1 = 9xx10^9 m F^-1 and e = 1.6 xx 10^-19 C .

A telescope has objective lens of focal length 15m. If this telescope is used to view the moon, what is the diameter of the image of the moon formed by the objective lens? The diameter of the moon is 3.48 xx 10^6m , and the radius of lunar orbit is 3.8 xx 10^8m .