  It is shown that from the data of future solar neutrino experiments (SNO and
Super-Kamiokande), in which high-energy $^8\mathrm{B}$ neutrinos will be
detected, it will be possible in a model independent way: 1) To reveal the
presence of sterile neutrinos in the flux of solar neutrinos on the earth; 2)
To obtain the initial flux of $^8\mathrm{B}$ $\nu_e$'s; 3) To determine the
probability of $\nu_e$'s to survive as a function of neutrino energy.
