“photon”的概念、定义、翻译、参考文献-科学参考

photon

Physics

A particle with zero rest mass consisting of a quantum of electromagnetic radiation. The photon may also be regarded as a unit of energy equal to hf, where h is the Planck constant and f is the frequency of the radiation in hertz. Photons travel at the speed of light. They are required to explain the photoelectric effect and other phenomena that require light to have particle character.

Astronomy

A particle of electromagnetic radiation. A photon has zero rest mass, zero charge, and travels at the speed of light. The energy, E, of a photon is related to its frequency, f, by the formula E = hf, where h is the Planck constant. Hence a photon at a radio frequency is of much lower energy than a gamma-ray photon.

Chemistry

A particle with zero rest mass consisting of a quantum of electromagnetic radiation. The photon may also be regarded as a unit of energy equal to hf, where h is the Planck constant and f is the frequency of the radiation in hertz. Photons travel at the speed of light. They are required to explain the photoelectric effect and other phenomena that require light to have particle character. The name photon was proposed by Gilbert Newton Lewis in 1926.

Electronics and Electrical Engineering

The quantum of electromagnetic radiation. It can be considered as an elementary particle of zero mass and having energy hv, where h is the Planck constant and v the frequency of the radiation. It travels at the speed of light, c, and has momentum hv/c or hλ, where λ is the wavelength of the radiation. Photons can cause excitation of atoms and molecules resulting in photoconductivity in semiconductors; if the energy is sufficiently great photoionization or the photoelectric effect can result.

单词	photon
释义	photon Physics A particle with zero rest mass consisting of a quantum of electromagnetic radiation. The photon may also be regarded as a unit of energy equal to hf, where h is the Planck constant and f is the frequency of the radiation in hertz. Photons travel at the speed of light. They are required to explain the photoelectric effect and other phenomena that require light to have particle character. Astronomy A particle of electromagnetic radiation. A photon has zero rest mass, zero charge, and travels at the speed of light. The energy, E, of a photon is related to its frequency, f, by the formula E = hf, where h is the Planck constant. Hence a photon at a radio frequency is of much lower energy than a gamma-ray photon. Chemistry A particle with zero rest mass consisting of a quantum of electromagnetic radiation. The photon may also be regarded as a unit of energy equal to hf, where h is the Planck constant and f is the frequency of the radiation in hertz. Photons travel at the speed of light. They are required to explain the photoelectric effect and other phenomena that require light to have particle character. The name photon was proposed by Gilbert Newton Lewis in 1926. Electronics and Electrical Engineering The quantum of electromagnetic radiation. It can be considered as an elementary particle of zero mass and having energy hv, where h is the Planck constant and v the frequency of the radiation. It travels at the speed of light, c, and has momentum hv/c or hλ, where λ is the wavelength of the radiation. Photons can cause excitation of atoms and molecules resulting in photoconductivity in semiconductors; if the energy is sufficiently great photoionization or the photoelectric effect can result.
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