The electric field of a plane electromagnetic wave is given by

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Waves Sound and Physical Optics · Waves Sound and Physical Optics

Problem

The electric field of a plane electromagnetic wave is given by E⃗=E0i^cos⁡(kz)cos⁡(ωt)\vec{E} = E_0 \hat{i} \cos(kz) \cos(\omega t) . The corresponding magnetic field is then given by: (1) B⃗=E0Cj^sin⁡(kz)sin⁡(ωt)\vec{B} = \frac{E_0}{C} \hat{j} \sin(kz) \sin(\omega t) (2) B⃗=E0Cj^sin⁡(kz)cos⁡(ωt)\vec{B} = \frac{E_0}{C} \hat{j} \sin(kz) \cos(\omega t) (3) B⃗=E0Cj^cos⁡(kz)sin⁡(ωt)\vec{B} = \frac{E_0}{C} \hat{j} \cos(kz) \sin(\omega t) (4) B⃗=E0Ck^sin⁡(kz)cos⁡(ωt)\vec{B} = \frac{E_0}{C} \hat{k} \sin(kz) \cos(\omega t)

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