An EM wave propagating in vacuum, with electric field amplitude Eo > 0 and magnetic field amplitude Bo > 0, has wavenumber k and angular frequency w. The following is a list of possible pairs of the electric (E) and magnetic fields (B): I. Ē = E₁ cos(kz + wt)k, B = Bo cos(kz + wt)j II. Ē = Eo cos(ky- wt)k, B = Bo cos(ky - wot)i III. Ē = - Eo cos(kx + wt)ĵ, B: Which among the choices below correspond to a physically realizable EM wave? O A. I only O B. II only II and III only = - Bo cos(kx + wt)k.
An EM wave propagating in vacuum, with electric field amplitude Eo > 0 and magnetic field amplitude Bo > 0, has wavenumber k and angular frequency w. The following is a list of possible pairs of the electric (E) and magnetic fields (B): I. Ē = E₁ cos(kz + wt)k, B = Bo cos(kz + wt)j II. Ē = Eo cos(ky- wt)k, B = Bo cos(ky - wot)i III. Ē = - Eo cos(kx + wt)ĵ, B: Which among the choices below correspond to a physically realizable EM wave? O A. I only O B. II only II and III only = - Bo cos(kx + wt)k.
Chapter16: Electromagnetic Waves
Section: Chapter Questions
Problem 71P: Suppose a spherical particle of mass m and radius R in space absorbs light of intensity I for time...
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![An EM wave propagating in vacuum, with
electric field amplitude Eo > 0 and magnetic
field amplitude Bo > 0, has wavenumber k
and angular frequency w. The following is a list
of possible pairs of the electric (E) and
magnetic fields (B):
I.
Ē
=
E cos(kz + wt)k, B = Bo cos(kz + wt) j
II.
È = E cos(ky – wt)k, B = Bo cos(ky – wt)î
III.
Ē = − Е cos(kx + wt)ĵ, B = − B₁ cos(kx + wt)k.
Which among the choices below correspond to
a physically realizable EM wave?
O A. I only
O B. II only
C. II and III only
O D. Ill only](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F42d52dcb-5d26-47a3-b360-5da9f53a46a5%2F6f5815b9-a75e-4a40-8642-77d695511020%2Fwqn837_processed.jpeg&w=3840&q=75)
Transcribed Image Text:An EM wave propagating in vacuum, with
electric field amplitude Eo > 0 and magnetic
field amplitude Bo > 0, has wavenumber k
and angular frequency w. The following is a list
of possible pairs of the electric (E) and
magnetic fields (B):
I.
Ē
=
E cos(kz + wt)k, B = Bo cos(kz + wt) j
II.
È = E cos(ky – wt)k, B = Bo cos(ky – wt)î
III.
Ē = − Е cos(kx + wt)ĵ, B = − B₁ cos(kx + wt)k.
Which among the choices below correspond to
a physically realizable EM wave?
O A. I only
O B. II only
C. II and III only
O D. Ill only
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