cherenkov radiation?
In: Physics
Electrodynamic rule is speed of light in vacuum would always be c, independent of any inertial frames.
However speed of light in other Dielectric mediums having refractive index >1 would be less than c.
for example light travels at .75c speed in water..slower than speed in vacuum.
Therefore in such medium where light is traveling at slower speed while matter can be accelerated greater than speed of light in same medium and obviously less than speed c…we can create same condition of sonic boom of sound waves.
Light photons emitted from electron traveling in medium cannot escape as electron is traveling faster than photon …so it continues to build wavefront same like in sonic boom and pure coherent energy is released having photon in same phase velocity.
Due to high energy release..higher frequency photons are released which is of low wavelength…hence blue or violet light is visible as form of cherenkov radiation.
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