Does Electromagnetic Radiation Contain Photons?

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Discussion Overview

The discussion revolves around whether all electromagnetic radiation consists of photons, exploring the nature of electromagnetic radiation and the role of photons in different contexts, including quantum mechanics and geometric optics.

Discussion Character

  • Debate/contested

Main Points Raised

  • One participant asserts that all electromagnetic radiation consists of photons.
  • Another participant responds affirmatively, suggesting a consensus.
  • A third participant uses the term "usually," indicating a potential nuance or condition in the statement.
  • A later reply elaborates that photons serve as a mathematical description that highlights finer scale effects relevant in quantum mechanics, contrasting this with descriptions found in geometric optics.

Areas of Agreement / Disagreement

While some participants agree that electromagnetic radiation consists of photons, the use of "usually" suggests that there may be conditions or contexts where this may not hold, indicating that the discussion remains unresolved.

Contextual Notes

The discussion reflects varying interpretations of electromagnetic radiation and the role of photons, with implications depending on the scale and context of the phenomena being described.

soumyajitnag
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does every electromagnetic radiation consist of photon?
 
Science news on Phys.org
yes

Dave
 
usually
 
technician said:
usually

Meaning?
 
Yes

There are often many mathematical descriptions of a single phenomena in physics, depending on the scale, complexity, context, etc. A photon is a mathematical description that teases out some of the finer scale effects noticeable at the scales dealt with in quantum mechanics. It's a more careful description of electromagnetic radiation than what you might find in geometric optics for instance. So yes, all EM radiation consists of photons.
 

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