Electron Emission NCERT Exemplar (Objective) Based MCQs Dual Nature of Radiation and Matter Physics NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

Consider a beam of electrons (each electron with energy \(E_0)\) incident on a metal surface kept in an evacuated chamber. Then:

1.	no electrons will be emitted as only photons can emit electrons.
2.	electrons can be emitted but all with energy, \(E_0\).
3.	electrons can be emitted with any energy, with a maximum of \(\mathrm{E}_0-\phi\) (\(\phi\) is the work function).
4.	electrons can be emitted with any energy, with a maximum \(E_0\).

Subtopic: Electron Emission |

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