Notices
Results 1 to 2 of 2

Thread: E=mc2

  1. #1 E=mc2 
    New Member
    Join Date
    Jul 2014
    Posts
    2

    Please comment on the following statement:

    "As photon is in light, it has the highest velocity and according to
    law of conservation of energy, the relativistic mass is reducing towards zero [not exactly zero] to conserve the energy"


    Reply With Quote  
     

  2.  
     

  3. #2  
    Bullshit Intolerant PhDemon's Avatar
    Join Date
    Feb 2013
    Location
    Newcastle-upon-Tyne, UK
    Posts
    5,294
    It is pretty much gibberish. Photons have no rest mass so the use of E=mc2 in the thread title doesn't work, you have to use the full form of the equation which is:

    E2=(mc2)2 + (pc)2

    where p is momentum which photons do​ have.

    For photons, m=0 and E=pc...


    Reply With Quote  
     

Similar Threads

  1. Photons and E=mc2?
    By Daecon in forum Physics
    Replies: 30
    Last Post: July 12th, 2014, 09:31 PM
  2. E = mc2 = m(c/cos0)2
    By Suhail Jalbout in forum Pseudoscience
    Replies: 6
    Last Post: November 27th, 2011, 05:25 AM
  3. E=mc2
    By curious1 in forum Physics
    Replies: 4
    Last Post: September 8th, 2011, 01:25 PM
  4. E = mc2
    By IAlexN in forum Physics
    Replies: 2
    Last Post: February 24th, 2010, 02:11 PM
  5. e=mc2
    By the universe in forum Physics
    Replies: 43
    Last Post: September 6th, 2006, 08:46 AM
Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •