Frequence and wavelength of a photon

In summary, to calculate the frequency and wavelength of a photon with 6.2 x 10^4 eV of energy, you can use Planck's constant (E=hf) to relate the energy to frequency, and then use the wave equation (c=fλ) to find the wavelength. It is important to be careful with units and there are multiple ways to approach the problem.
  • #1
kinst
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Homework Statement


Calculate the frequency and wavelength of a photon with 6.2 x 10^4 eV of energy.


I have no idea where to start, so can anyone please point me in the right direction.
 
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  • #2
You can relate the energy of a photon to its frequency by using Planck's constant. Have you seen this before: E=hf

Be careful of your units.
 
  • #3
oh thanks a lot, i used the equation to get frequency
and for the wavelength, i used E = (h)(c) / λdoes it look right?
 
  • #4
You can do that to get the wavelength, or you could just directly apply the wave equation c=fλ to get it. A little more straight forward if you've already found the frequency.
 

Related to Frequence and wavelength of a photon

1. What is the relationship between frequency and wavelength of a photon?

The frequency and wavelength of a photon are inversely proportional. This means that as the frequency increases, the wavelength decreases, and vice versa. This relationship is described by the equation: c = λν, where c is the speed of light, λ is the wavelength, and ν is the frequency.

2. How are frequency and energy related in a photon?

The energy of a photon is directly proportional to its frequency. This means that as the frequency increases, the energy of the photon also increases. This relationship is described by the equation: E = hν, where E is the energy, h is Planck's constant, and ν is the frequency.

3. What is the unit of measurement for frequency and wavelength of a photon?

The unit of measurement for frequency is hertz (Hz), which represents the number of oscillations per second. The unit of measurement for wavelength is meters (m), which represents the distance between two consecutive peaks or troughs of a wave.

4. How is the frequency and wavelength of a photon determined?

The frequency and wavelength of a photon are determined by the source of the photon. For example, the frequency and wavelength of a photon emitted by an atom will depend on the energy levels of the atom. Additionally, the medium through which the photon travels can also affect its frequency and wavelength.

5. Can the frequency and wavelength of a photon be changed?

The frequency and wavelength of a photon can be changed by altering the energy of the source or by passing through a medium with a different refractive index. However, the frequency and wavelength of a photon are fundamental properties and cannot be changed by external factors once the photon is emitted.

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