Diamagmetic solids . a. both a and d b. have atoms with strongly aligned electrons when placed in a magnetic field c. show very slight magnetic character when placed in a magnetic field d. have atoms with one or more unpaired electrons e. have atoms with randomly oriented magnetic moments

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.