It is said that empirical results of the photoelectric effect have no classical justification and then are used for deduction of the famous relation E = hν as an alternative way to Planck's deduction. We show that these results are in fact justifiable by the classical theory of electromagnetism and then this way can not be a valid manner for obtaining this relation. Using the presented discussions simple justification of the Rayleigh scattering and of the action mechanism of laser are presented in support of the validity of the discussion.