We are recalling them now in a more general context. We have discussed these relations for photons in the context of Compton’s effect. These new technologies drive discoveries in other sciences such as biology and chemistry.Īccording to de Broglie’s hypothesis, massless photons as well as massive particles must satisfy one common set of relations that connect the energy E with the frequency f, and the linear momentum p with the wavelength λ. Quantum mechanics has paved the way for new engineering inventions and technologies, such as the laser and magnetic resonance imaging (MRI). In 1926, De Broglie’s hypothesis, together with Bohr’s early quantum theory, led to the development of a new theory of wave quantum mechanics to describe the physics of atoms and subatomic particles. Today, this idea is known as de Broglie’s hypothesis of matter waves. In 1924, Louis de Broglie proposed a new speculative hypothesis that electrons and other particles of matter can behave like waves. Interpret de Broglie’s idea of matter waves and how they account for electron diffraction phenomenaĬompton’s formula established that an electromagnetic wave can behave like a particle of light when interacting with matter.Describe the Davisson–Germer experiment.Explain how the de Broglie’s hypothesis gives the rationale for the quantization of angular momentum in Bohr’s quantum theory of the hydrogen atom.Describe de Broglie’s hypothesis of matter waves.By the end of this section, you will be able to:
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