Why Does Light Have Different Energy Levels? Explained

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Light consists of electromagnetic waves that travel at the same speed but possess different energy levels determined by their frequency, as explained by Planck's equation. The energy of light is related to its "internal vibration," with higher frequencies corresponding to higher energy. When light passes through a different medium, its frequency and energy remain constant, but its wavelength changes. The speed of light varies in different media, affecting the wavelength while keeping energy consistent. Understanding these principles clarifies how light behaves in various environments.
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Though all EM waves travels in the same speed each one has a diiferent energy. can anyone tell me why. i know it is because of planks equation. but i am looking for some logical explanation.
 
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Naively, you can think of it as an "internal vibration", the speed of which (its frequency) determines the energy of the radiation.
 
yes by the way what happens to the energy of the light when it passes through a different medium pls explain to me in detail.
 
When light passes through a passive medium its frequency (and thus the energy of a photon) remains the same but its wavelength changes.
 
Energy of light rays does not change as it change mediums. the speed of different frequence light rays are different in different mediums and thus the wavelength of different frequency rays take the appropriate value
 
thanks for the help
 
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