Question

Equation for wave vector is​

Answer 1

Answer:

Explanation:

E describes the electric field, B the magnetic induction (H-magnetic field). The poynting vector P=ExH explains that E and H are vertical to P. The wave vector is needed to describe the wave function, for instance E = Eosin(wt-kr).

Answer 2

Answer:

a describe the electric field , B the magnetic induction (H- magnetic field) . the pointing vector p=E×H explains that E and H are vertical to P . the wave vector is needed to describe the wave function, for instance E=E0 sin (wt-kr) .

Explanation:

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