Property 1: Speed of Light

• particle (photon) ? no prediction

• wave (E&M) ? Maxwell’s Eqs.

in vacuum:

v = [1 / {?o ?o}]1/2 where

?o = 1/{4?k} = 1 / {4? * 9x109 Nt-m2/Coul2}

?o = 4? * 1x10-7 T-s /Coul

v = [4?*9x109 / 4?*1x10-7 ]1/2 = 3 x 108 m/s = c

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