How does photon energy change as electromagnetic frequency increases?

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In the context of physics, the energy of a photon is directly proportional to the frequency of the electromagnetic radiation. As the frequency (ν or f) of the radiation increases, the energy (E) of the individual photons increases accordingly.123

This relationship is expressed by the equation:
E=hν

In this formula, h represents Planck’s constant, a fundamental physical constant. Because h is a fixed value, the energy of a photon scales linearly with its frequency. Consequently, high-frequency radiation—such as X-rays and gamma rays—consists of photons with significantly higher energy than those found in low-frequency radiation, such as radio waves.2431