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0 votes
0 answers
224 views

Franck Hertz experiment and the Mean Free Path

As part of my project in physics, I tried to repeat the franck hertz experiment, I did the same experiment with Neon and Mercury (the lengh between the catode and lattice is $5 mm$), I measured the ...
Sagigever's user avatar
  • 555
0 votes
2 answers
152 views

Is penetration of a fast particle deep into a medium a quantum mechanical effect?

Consider the cosmic rays. The muons can travel 15000 meters through the atmosphere and get down to sea level. If this is not a quantum mechanical effect, its penetration depth is determined by the ...
Jiang-min Zhang's user avatar
0 votes
1 answer
55 views

How photons get distributed in a system?

Let's say I'm in a room, and there are plenty of things in my room like carpet,mirrors,glass and other stuff.And I see there are shadow regions and fully bright regions, and I want to know how photons ...
Gary Grey's user avatar
  • 399
6 votes
1 answer
574 views

Does it make sense to define the mean free path in quantum mechanics?

The mean free path defined in classical molecule dynamics has a strong classical flavor. Is it sensible to generalize the idea to quantum mechanics?
San's user avatar
  • 153