question_answer

Alight of wavelength \[5000\text{ }A{}^\circ \] and intensity \[4.68\text{ }mW/c{{m}^{2}}\] is incident on a light sensitive surface. If only\[~5%\] of incident photons produce photoelectrons. Find the number of electrons emitted per unit area per unit time.

Answer:

\[(59\times {{10}^{17}})\]