Astronomy & Space Science · AST-081
Photons, Wavelength & Frequency: Foundations
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Overview
The physical idea behind Photons, Wavelength & Frequency
Light can be described both as an electromagnetic wave and as quantized packets of energy called photons. Wavelength and frequency describe the wave pattern, while photon energy is proportional to frequency and inversely proportional to wavelength.
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References & evidence
Source library for this chapter
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- 01The Electromagnetic SpectrumOpen source ↗
OpenStax Astronomy 2e
View claim-by-claim traceability3 verified claims
Light can be described both as an electromagnetic wave and as quantized packets of energy called photons.
supported · checked Sep 22, 2026Atoms, molecules, and solids exchange energy with radiation in discrete or collective processes.
supported · checked Sep 22, 2026Photoelectric measurements, atomic spectra, and detectors that count individual photons demonstrate quantization, while interference and diffraction demonstrate wave behavior.
supported · checked Sep 22, 2026