Property 1: Speed of Light

• particle (photon) ? no prediction

• wave (E&M) ? Maxwell’s Eqs.

in material,

vphase = ?[1/?o?o]

? = K?o , where Kɭ and ? ? ?o ; so

v < c

According to the wave theory, light should move slower in material than in vacuum.

Previous slide

Next slide

Back to first slide

View graphic version