The ratio of a photon's energy to its frequency is
A) its speed.
B) its wavelength.
C) Planck's constant.
D) its amplitude.
E) none of these

Name: The ratio of a photon's energy to its frequency is A) its speed. B) its wavelength. C) Planck's constant. D) its amplitude. E) none of these
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The ratio of a photon's energy (E) to its frequency (f) is given by E = hf, where h is Planck's constant. This relationship is a fundamental principle of quantum mechanics.

The Ratio of a Photon's Energy to Its Frequency Is