Frequence and wavelength of a photon

  • Thread starter Thread starter kinst
  • Start date Start date
  • Tags Tags
    Photon Wavelength
AI Thread Summary
To calculate the frequency and wavelength of a photon with an energy of 6.2 x 10^4 eV, use Planck's equation E=hf, where E is energy, h is Planck's constant, and f is frequency. After determining the frequency, the wavelength can be calculated using the equation E = (h)(c) / λ or by applying the wave equation c = fλ. It's important to ensure that units are consistent throughout the calculations. This approach allows for a straightforward determination of both frequency and wavelength. Understanding these relationships is crucial in photon energy calculations.
kinst
Messages
6
Reaction score
0

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.
 
Physics news on Phys.org
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.
 
oh thanks a lot, i used the equation to get frequency
and for the wavelength, i used E = (h)(c) / λdoes it look right?
 
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.
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Back
Top