Consider a beam of electrons (each electron with energy E) incident on a metal surface kept in an evacuated chamber, then which of the following is correct?

no electrons will be emitted as only photons can emit electrons electrons can be emitted but all with energy E electrons can be emitted with any energy with a maximum of E-W (W is the work function) electrons can be emitted with any energy with a maximum of E

electrons can be emitted with any energy with a maximum of E

When a beam of electrons is incident on a metal surface, it can undergo elastic collision where the maximum energy of the emitted electron is E, or it can undergo photoelectric effect where the maximum possible energy is E-W.