Wave Particle Duality, The idea that light can act both like a wave and like a particle without contradiction, Photoemission, The emission of photoelectrons from the surface of a material in the photoelectric effect, Photon, A particle of light that can also be thought of as a short burst of wave energy, Light, An electromagnetic wave that travels at 3x108 ms-1. It reflects, refracts and diffracts, Photoelectron, An electron emitted from the surface of a material due to a photon incident on the material., Electroscope, Consists of a metal plate, metal rod and gold leaf. The deflection of the gold leaf can be used to investigate the photoelectric effect.

Wave Particle Duality

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