- #1
shezill
An atom has an energy level 1.8 eV above ground state. When excited, it returns to the ground state and emits a photn. Ccalculate the energy and wavelength of the photon.
help me please
thank you
help me please
thank you
Calculate the energy and wavelength of the photon.
- Thread starter shezill
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In summary, the conversation discussed the concept of a photon and its relationship to energy and frequency. It was mentioned that an atom has an energy level 1.8 eV above ground state and when excited, it returns to the ground state and emits a photon. The energy and wavelength of the photon can be calculated using the equation E = hf, where h is Planck's constant. It was also clarified that it was Einstein, not Planck, who first proposed the concept of a photon and received the Nobel Prize for it.
- #2
arcnets
- 508
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Well if you ask like this, I think it's like in Homework Help: You would learn nothing from a direct answer.
So here's a hint: How, do you think, has it been found out that the energy level is actually 1.8 eV?
So here's a hint: How, do you think, has it been found out that the energy level is actually 1.8 eV?
- #3
ShawnD
Science Advisor
- 718
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Planck said that the energy of a photon is directly related to the frequency of the photon. We can express that as E = hf where h means Planck's constant.
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- #4
einsteinian77
- 208
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ShawnD, Einstein said that
- #5
ShawnD
Science Advisor
- 718
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No, Planck said it. That's why they call it "Planck's constant"
- #6
Kalimaa23
- 279
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Nope, it was Einstein who came up with the whole "photon" thing in his paper on the photo-eletric effect, which got him the Nobel Price.
For many years, Planck simply didn't buy the idea
For many years, Planck simply didn't buy the idea
- #7
frankR
- 91
- 0
Ding, ding, ding! That's what Einstein won the Noble Prize for.
1. What is the formula for calculating the energy of a photon?
The formula for calculating the energy of a photon is E = hν, where E is energy, h is Planck's constant (6.626 x 10^-34 J·s), and ν is the frequency of the photon.
2. How do you determine the wavelength of a photon?
The wavelength of a photon can be determined by dividing the speed of light (c = 3.00 x 10^8 m/s) by the frequency of the photon (λ = c/ν).
3. What is the relationship between energy and wavelength of a photon?
The energy and wavelength of a photon are inversely proportional. This means that as the energy of a photon increases, the wavelength decreases and vice versa.
4. Can the energy and wavelength of a photon be calculated for any type of electromagnetic radiation?
Yes, the energy and wavelength of a photon can be calculated for any type of electromagnetic radiation, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.
5. How is the energy and wavelength of a photon used in scientific research?
The energy and wavelength of a photon are used in various scientific fields, such as astronomy, quantum mechanics, and spectroscopy. They are important in understanding the behavior and properties of electromagnetic radiation and its interactions with matter.
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