Jun 17, 2005 #1 S suvendu Full Member level 3 Joined Oct 10, 2004 Messages 167 Helped 16 Reputation 32 Reaction score 3 Trophy points 1,298 Activity points 2,121 why photon,s rest mass is zero?
Jun 17, 2005 #2 P ping Newbie level 4 Joined Jun 17, 2005 Messages 5 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Activity points 1,320 Photon's rest mass is a non sense. Photons are never at rest...they go at the speed of light! This is because they have no mass (and viceversa). bye
Photon's rest mass is a non sense. Photons are never at rest...they go at the speed of light! This is because they have no mass (and viceversa). bye
Jun 17, 2005 #3 V vomit Full Member level 2 Joined Jun 14, 2002 Messages 148 Helped 14 Reputation 28 Reaction score 4 Trophy points 1,298 Activity points 1,527 As the speed of light is fixed, the concept of "rest" mass doesn't exist in a photon. The photon's energy is dependent on the wavelength, not the speed (fixed). Here's a nice text: https://math.ucr.edu/home/baez/physics/ParticleAndNuclear/photon_mass.html
As the speed of light is fixed, the concept of "rest" mass doesn't exist in a photon. The photon's energy is dependent on the wavelength, not the speed (fixed). Here's a nice text: https://math.ucr.edu/home/baez/physics/ParticleAndNuclear/photon_mass.html