Does a medium have to have mass to 'be' a medium?

  • Context: Graduate 
  • Thread starter Thread starter Ralphonsicus
  • Start date Start date
  • Tags Tags
    Mass Medium
Join the discussion
Registration is free. Start your own thread to ask a follow-up.
Sign up Log in
2 replies · 3K views
Ralphonsicus
Messages
47
Reaction score
0
For example can massless particles serve as media?
 
Physics news on Phys.org

Discussion

Ralphonsicus said:
For example can massless particles serve as media?

Don't we call that vacuum?
 

Similar threads

Does all light exiting the medium have one polarization at Brewster's angle?

  • says
  • · Replies 1 ·
  • Introductory Physics Homework Help
Replies
1

High School Does the Medium Affect Gravitational Constant G?

  • yaseen shah
  • · Replies 2 ·
  • Classical Physics
Replies
2

Graduate Do photons in a medium have zero momentum?

  • greswd
  • · Replies 2 ·
  • Special and General Relativity
Replies
2

Graduate Can a photon have mass when travelling through a medium?

  • Prime
  • · Replies 21 ·
  • Optics
Replies
21

Graduate Does the photon have a 4-velocity in a medium?

  • PFfan01
  • · Replies 82 ·
  • Special and General Relativity
3
Replies
82

Graduate Do Photons Have Mass and How Do They Interact in LASERs?

  • Curious1
  • · Replies 17 ·
  • Optics
Replies
17

How do I find average kinetic energy if I don't have mass of the gas?

  • Domuks
  • · Replies 2 ·
  • Introductory Physics Homework Help
Replies
2

Graduate Does a Particle's Identity Have a Physical Cost?

  • XuYi8888
  • · Replies 1 ·
  • Beyond the Standard Models
Replies
1

Graduate Consequences to a medium after ionising radiation has passed through?

  • timmyc
  • · Replies 1 ·
  • Thermodynamics
Replies
1

Undergrad EM waves have no mass but they do have momentum?

  • BranRubaba
  • · Replies 21 ·
  • Electromagnetism
Replies
21