Furthermore , below a certain minimum frequency , which depended on the particular metal , no current would flow regardless of the intensity .
Experimental measurements demonstrated that the energy of individual ejected electrons was proportional to the frequency , rather than the intensity , of the light .
Below a certain minimum frequency , which depended on the particular metal , no current would flow regardless of the intensity .
Experimental measurements demonstrated that the energy of individual ejected electrons was proportional to the frequency , rather than the intensity , of the light .