Physics, Science, Electrodynamics, Electromagnetic Waves, STEM.
generic r vector since the waves travel in three dimensions now. Once again, the first medium has permeability μ₁, dielectric constant ε₁ and the second medium is characterized by μ₂ and ε₂. The velocities of the wave are similarly labelled v₁ and v₂. The equations become: Do you remember what