A plane electromagnetic wave travels in vacuum along z-direction.

Amplitude of magnetic field of an electromagnetic wave in a vacuum, B0 = 510 nT = 510 × 10−9 T Speed of light in a vacuum, c = 3 × 108 m/s Amplitude...

(a) in vacuum (c) in a material medium EXPLANATION:  The light is an electromagnetic wave that can travel in a vacuum as well as in a transparent material medium.

(a) An electromagnetic wave going through vacuum is described by E0k = B0ω. 

(a) along the electric field

(c) The wave delivers momentum p and energy E, p ≠ 0, E ≠ 0

(c) An electromagnetic wave going through vacuum is described by  k/ω 

(a) electric field (b) magnetic field

(i) Standard equation of magnetic field is By = B0sin(ωt + kx)T Comparing this equation with the given equation, we get B0 = 8 x 10-6T, ω = 2 x 1011 rad s-1, k...

Electric field along Y-direction. Magnetic field along Z direction. (so that vector K, vector E, vector B form a right handed system) 

Electric field along X-direction. Magnetic field along Z-direction