What you’ll learn4 learning objectivesChoose one objective for a focused lesson, or study the complete topic.22.3.1The photoelectric effect provides evidence for a particulate nature of• understand that the photoelectric effect provides evidence for a particulate nature of electromagnetic radiation while phenomena such• As interference and diffraction provide evidence for a wave natureSyllabus objective22.3.2And interpret qualitatively the evidence provided by electron diffraction• describe and interpret qualitatively the evidence provided by electron diffraction for the wave nature of particlesSyllabus objective22.3.3The de Broglie wavelength as the wavelength associated with a moving• understand the de Broglie wavelength as the wavelength associated with a moving particleSyllabus objective22.3.4Λ = h / p• recall and use λ = h / pSyllabus objective