In a photoelectric effect experiment where the purpose is to investigate the relationship of the kinetic energy of the emitted electrons to the brightness intensity, rate of energy flow per unit area and to the color wavelength or frequency of the incident light, utilize a mercury light to find the Vo for Green, Yellow, Blue, Violet & ultraviolet.
While obtaining the Vmax(Vo) for Yellow & Green we utilize a yellow and Green filter.
Define why did not use a blue filter on the blue band measurement of Vo?