It is said that any charge given to a conductor comes to its surface. Should all the protons come to the surface? Should all the electrons come to the surface? Should all the free electrons come to the surface?

Do all the electrons that absorb a photon come out as photoelectrons ?

Eventhough metals have free electrons, they cannot escape from metal surface. Why?

A hollow charged conductor has a tiny hole cut in to its surface show that the electric field in the hole is n where n is the charge density near the hole

The radius of a gold nucleus (Z=79) is about 7.0*10^(-10) m . Assume that the positive charge is distributed uniformly throughout the nuclear volume. Find the strength of the electric field at (a) the surface of the nucleus and (b) at the middle point of a radius. Remembering that gold is a conductor, is it justified to assume that the positive charge is uniformly distributed over the entire volume of the nucleus and does not come to the outer surface?

In pure rolling, the velocity of the point of the rolling object which comes in contact with the surface line

The incident ray , the refracted ray of light and the normal to the refracting surface all lie in the different plane .

A Work function of a metal is the a. energy required by an electron to get absorbed in the metal surface. b. minimum energy required by an electron to escape from the metal surface. c. energy required by an electron to be retained in the metal surface. d. maximum energy required by an electron to escape from the metal surface. B. Write Einstein's Photo-Electric Equation and explain the terms in it. C. All photo electrons are not emitted with the same energy as the incident photons. Why?