Energy of photon [ENDORSED]
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Energy of photon
When it comes to energy of a photon, there is a specific equation to calculate it right??
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Re: Energy of photon [ENDORSED]
Henry_Phan_3B wrote:Chem_Mod wrote:Yes, E = hv or E = hc/.
How did you get that second equation?
You substitute for v in E=hv to get E=hc/λ
Use the light equation c = vλ, solve for v to get v = c/λ, and substitute back into E=hv for v
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Re: Energy of photon
Depending on the specific variables that you have you can use either the equation:
E= hv
or
E = hc/ lambda
The second equation is just a combination of the first equation and lambda = c/v.
E= hv
or
E = hc/ lambda
The second equation is just a combination of the first equation and lambda = c/v.
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Re: Energy of photon
Like everyone stated before you would use both the equations C=λv and E=hv. It’s important to note that the equation with speed of light is only applicable to problems dealing with light. You can then reconfigure the equations to solve for the variable you are looking for.
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Re: Energy of photon
The method you use to calculate the energy of a photon depends on what the problem gives you. The equation for the energy of a photon E (energy of photon) = h (planck constant) * v (frequency). can be substituted into the previous equation if they give you values other than frequency.
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Re: Energy of photon
Yes. In order to calculate the energy of a photon you use the equation E=hv.
E=energy of a photon in Joules
h=Planck's constant (6.626*10^-34 J*s)
v=frequency of wave in Hz
E=energy of a photon in Joules
h=Planck's constant (6.626*10^-34 J*s)
v=frequency of wave in Hz
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