Light Wavelengths: Causes & Frequency Explained

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    Light Wavelengths
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SUMMARY

The discussion clarifies that the difference in light wavelengths is directly related to frequency, with the two being inversely proportional. Increasing frequency results in a shorter wavelength, while decreasing frequency leads to a longer wavelength. The energy of photons is the practical factor that alters frequency and wavelength; more energetic photons correspond to shorter wavelengths and higher frequencies. This relationship is fundamental to understanding light behavior in physics.

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  • Understanding of wave mechanics
  • Basic knowledge of photon energy
  • Familiarity with the concept of frequency
  • Mathematical relationship between frequency and wavelength
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  • Explore the properties of electromagnetic waves
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Students and professionals in physics, optical engineering, and anyone interested in the fundamental properties of light and its behavior in various mediums.

Dancingkitty
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What causes the difference in wavelengths of light? Is it frequency or something?
 
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Well mathematically changing the frequency will change the wavelength, the two are inversely related which makes sense:

If we increase a frequency, then we've shortened the period of a wave which is a shortening of the wavelength

If we decrease a frequency then we've increased the period of a wave which is a lengthening of the wavelength.

However in practice we would change a frequency/wavelength by changing the energy of the light. More energetic photons (light) means a shorter wavelength (and conversely larger frequency).

This intuitively kind of makes sense. If something is more energetic it will "move" faster, in the case of light this means it will have a shorter period which implies a shorter wavelength.

By the way, welcome to PF!
 
o ok that makes a lot of sense, thanks!
 

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