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Speed of light

  1. Oct 24, 2011 #1
    Can a body exceed 3/4 the speed of light in water.
  2. jcsd
  3. Oct 25, 2011 #2


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    Last edited by a moderator: Oct 25, 2011
  4. Oct 25, 2011 #3
    Weakly interacting particles, with no charge, like the neutrinos, will (almost) not be affected by water or any other environment.
    Such particles will maintain their existing velocity, close to the speed of light in the neutrinos case.
  5. Oct 27, 2011 #4
    then will a phenomenon like sonic boom would occur?
  6. Oct 27, 2011 #5
    Cherenkov effect is analogous to sonic boom for sound.
  7. Oct 27, 2011 #6
    Yes, there would be Cherenkov radiation radiating at a certain angle to the trajectory of the particle.
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