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...Electron diffraction reference instruction manual tube welch scientific co cat no available at r c the esource entre introduction this experiment is a demonstration of wave nature and provides confirmation de broglie relationship h p where wavelength planck s constant momentum it also an to use in analysis crystals guide sheet outlines method for cubic crystal forms being useful you interpreting transmission pattern produced by scattering electrons off thin film target polycrystalline aluminium apparatus contains samples with hexagonal structures these are pyrolytic graphite targets both as single form methodology additional material on see voltmeter measures accelerating potential thus mv ev or mev f v final velocity after accelerated through above assumes non relativistic approximation what degree justified substituting equation me when values m e substituted nm volts bragg law case waves electromagnetic such x rays matter lattice similar light scattered grating however three dimensi...