Question

In photoelectric effect when photons of energy hv fall on a photosensitive surface (work function = $\Phi$ ) electrons are emitted from the metallic surface with a kinetic energy. It is possible to say that

• A. All ejected electrons have same kinetic energy equal to $h\upsilon -\Phi$
• B. The ejected electrons have a distribution of kinetic energy from zero to $h\upsilon -\Phi$
• C. The most energetic electrons have kinetic energy equal to $\Phi$
• D. All ejected electrons have kinetic energy $h\upsilon$

Answer 1

The correct option is B The ejected electrons have a distribution of kinetic energy from zero to $h\upsilon -\Phi$

The ejected electrons have a distribution of kinetic energy from zero to $h\upsilon -\Phi$