All Questions
10
questions
3
votes
3
answers
2k
views
Why don't we get infinite energy from a continous emission spectrum?
If the spectrum emitted contains all kinds of photons of all kinds of wavelengths, doesn't that mean it should have infinite number of photons of very small energies? For example, 4000 angstrom to ...
1
vote
2
answers
354
views
Are gamma rays the limit of the frequency photons can attain, and if yes, why? [duplicate]
Recalling that the Planck constant is $6.62607015 \times 10^{-34} m^2kg/s$ and taking into account the formula $E=hf$, for the energy of photons, we can rapidly derive the energy of gamma rays, which ...
- 143
-4
votes
4
answers
166
views
Is energy rule violated here? [closed]
We know that for an EM radiation , energy is given by :
$$E = \frac{hc}{\lambda}$$
.
Where $h$ is Planck's constant , $c = 300000000$m/s and $\lambda$ is wavelength of the radiation.
Clearly, energy ...
- 239
1
vote
0
answers
66
views
Upper limit of energy carried by one photon [duplicate]
energy carried by one photon, $E = hυ$ where $υ$ is frequency and $h =$ planck constant. Is there any upper limit to how much energy one photon can carry? or any upper limit of frequency?
- 67
2
votes
2
answers
401
views
Hypothetical maximum energy of a single photon [duplicate]
I'm no physicist so it might be a stupid question but is there a maximum energy a single photon can have?
My idea was, that there might be restriction for the minimum wavelength and I thought about ...
- 121
0
votes
1
answer
36
views
Energy of light
If a beam of light is travelling in full vacuum in same medium ,then , the energy of the light beam will decrease or not while moving through space ? The wavelength of the beam of light will change ...
-1
votes
1
answer
151
views
Does the continous EM spectrum contradict discrete energy? [duplicate]
After some research, it seems apparent to me that the EM spectrum is continuous, but this would contradict a physics fundamental that energy is discrete. Is there a conflict here?
- 4,711
25
votes
3
answers
8k
views
If energy is quantized, does that mean that there is a largest-possible wavelength?
Given Planck's energy-frequency relation $E=hf$, since energy is quantized, presumably there exists some quantum of energy that is the smallest possible. Is there truly such a universally-minimum ...
- 453
54
votes
5
answers
9k
views
Are there any theoretical limits on the energy of a photon?
Is there any lower or upper limit on the energy of a photon? i.e. does the mathematical framework we currently use to study photons blow up when a photon surpasses a certain upper limit of energy? (or ...
- 7,319
1
vote
2
answers
76
views
Do I need to convert units to be compatible with constants?
I want to calculate the wavelength of radiation given its energy.
I know I need to use $E=h f$ and $f = c / \lambda$.
All I'm given is $E = 20 \text{ keV}$, now my true question is:
Do I use $E = ...
- 23