How to find the wavelength of a Photon with no mass?

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SUMMARY

The discussion focuses on determining the wavelength of a photon, which is a massless particle. The relevant formulas are wavelength = c/f and wavelength = hc/Energy. Participants suggest that to find the wavelength of a photon, one could be provided with variables such as frequency, photon energy, photon momentum, or conditions involving refractive index and speed in non-vacuum scenarios. The conversation emphasizes understanding the relationship between these variables and the wavelength calculation.

PREREQUISITES
  • Understanding of the wave-particle duality of light
  • Familiarity with the speed of light (c) and its significance
  • Knowledge of photon energy and its relation to frequency
  • Basic concepts of diffraction and interference in physics
NEXT STEPS
  • Research the relationship between photon energy and frequency using E=hf
  • Explore the concept of photon momentum and its calculation
  • Learn about the effects of refractive index on photon wavelength
  • Study diffraction and interference patterns in light waves
USEFUL FOR

Students studying quantum mechanics, physics educators, and anyone interested in the properties of light and photon behavior.

nukeman
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Homework Statement



Hey guys, So I just did a problem here: (its find wavelength of particle with mass)
https://www.physicsforums.com/showthread.php?t=596936

But I need to figure out how to find the wavelength of a Photon with no mass.

I know the formula I need is this: wavelength = c/f = hc/Energy

BUT... What would be a general question that would ask this? What variable would be given, as in the problem I listed above trying to find the wavelength of a particle with mass, I was given the speed, so I could then plug into equation.

What would I be given to ask to find the wavelength of a photo with no mass?

Much thanks!





Homework Equations





The Attempt at a Solution

 
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As far as I can think at the moment, a problem might provide any of the following types of information and ask you to find the wavelength:
  • frequency
  • photon energy
  • photon momentum
  • frequency and refractive index, if the photon is not traveling in vacuum
  • frequency and speed, if the photon is not traveling in vacuum
  • details of a diffraction or interference experiment
 

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