Задача 50146.

The pressure of light with a wavelength of 0.6 µm incident normally on a black surface is 1 µPa. Determine the number of photons falling per second on 1 cm^2 of this surface.

A detailed solution with a brief note of the conditions, formulas and laws used in the solution, the derivation of the calculation formula and the answer.
If you have any questions about the solution, write. I try to help.