Among the following four spectral regions, in which of them, does the photon have the highest energy?
Correct answer: D. Ultraviolet
- A. Infrared
- B. Violet
- C. Blue
- D. Ultraviolet
Explanation
Photon energy is inversely proportional to the wavelength of light. This means that shorter wavelengths correspond to higher energy photons.Ultraviolet light has shorter wavelengths compared to visible light. As you move from violet to ultraviolet in the spectrum, the wavelengths become shorter, indicating higher energy photons.
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About Dawn of Modern Physics
Classical physics cannot explain blackbody radiation and related observations, leading to Planck’s quantum theory, in which energy is emitted or absorbed in discrete packets. Photons provide the particle model of light, with energy and momentum linked to frequency and wavelength, including the photoelectric effect and its threshold frequency.
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