Energy of a Photon: Wavelength, Frequency, Intensity, Speed, Polarization

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SUMMARY

The energy of a photon is determined by its frequency, as established by the equation E=hf, where E represents energy, h is Planck's constant, and f is frequency. Wavelength also influences photon energy through the relationship defined by the equation c = λf, where c is the speed of light and λ is wavelength. The discussion clarifies that both frequency and wavelength are critical properties affecting photon energy, and participants agree that multiple properties can be selected as answers to related questions.

PREREQUISITES
  • Understanding of the equation E=hf for photon energy calculation
  • Familiarity with the relationship between wavelength and frequency (c = λf)
  • Basic knowledge of photon properties, including speed and polarization
  • Awareness of Planck's constant and its significance in quantum mechanics
NEXT STEPS
  • Research the implications of Planck's constant in quantum physics
  • Explore the concept of photon polarization and its effects on energy
  • Learn about the practical applications of photon energy in technologies like lasers
  • Investigate the relationship between color, wavelength, and energy in light
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Students studying physics, educators teaching quantum mechanics, and anyone interested in the properties and behavior of photons in various applications.

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Homework Statement



the energy of the photon is determined by which properties:
a)wavelength
b)intensity of the beam
c)speed of pgoton
d)polarization
e)frequency

Homework Equations



E=hf=hc/lambda

The Attempt at a Solution



My first answer to this problem is E)frequency because of the equation E=hf. but then again, i thought about the equation c=lambdaf wherein the wavelength and frequency are related. And I'm confused because I only need to select an answer. would wavelength affect a photon's energy or is it dependent on its color? thanks
 
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The wavelength of a photo would certainly effect its energy, just as frequency does! The question says "properties" so I don't see why you can't pick both.
 
Hey there,
The question does state which properties so as far as I can see, you can select more than one answer. Does your original question say to state only one?

The Bob

http://en.wikipedia.org/wiki/Photon

P.S. I see someone got there just before I did. Sorry to repeat what's already been said.
 
Last edited:
The Bob said:
Hey there,
The question does state which properties so as far as I can see, you can select more than one answer. Does your original question say to state only one?

The Bob

http://en.wikipedia.org/wiki/Photon

P.S. I see someone got there just before I did. Sorry to repeat what's already been said.

I'm not sure, it's just kinda weird because there are questions like:
energy in a coiled wire is stored as:
a)charge b) potential diff c) magnetic fiels d)both a and b e) both a and c

in this question there's a choice of both a and b/a and c which is not present there. obviously, for this question, the answer's e.
 
If the formulae says it is both, which they do, then go for both.

The Bob
 

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