- #1
McLaren Rulez
- 292
- 3
Hi,
I am reading about phase velocity vs group velocity and while I get most of it, there is one thing I don't see. How can the phase velocity ever exceed c? At least in a vacuum, I think it never happens. Is that right? And if it does exceed c in a medium, what is the general physics behind it that let's it do that?
Thank you for your help!
I am reading about phase velocity vs group velocity and while I get most of it, there is one thing I don't see. How can the phase velocity ever exceed c? At least in a vacuum, I think it never happens. Is that right? And if it does exceed c in a medium, what is the general physics behind it that let's it do that?
Thank you for your help!