An EM wave travels in the +z direction. The wave's average intensity is 1000 W/m2, and its wavelength is 500 nm (blue-green visible light). The magnetic field of the wave is oscillating in the y direction. (a) Find the wave number of the wave. (b) Find the angular frequency of the wave. (c) In which direction does the electric field oscillate?
An EM wave travels in the +z direction. The wave's average intensity is 1000 W/m2, and its wavelength is 500 nm (blue-green visible light). The magnetic field of the wave is oscillating in the y direction. (a) Find the wave number of the wave. (b) Find the angular frequency of the wave. (c) In which direction does the electric field oscillate?
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter34: Maxwell’s Equations And Electromagnetic Waves
Section: Chapter Questions
Problem 72PQ
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An EM wave travels in the +z direction. The wave's average intensity is 1000 W/m2, and its wavelength is 500 nm (blue-green visible light). The magnetic field of the wave is oscillating in the y direction.
(a) Find the wave number of the wave.
(b) Find the angular frequency of the wave.
(c) In which direction does the electric field oscillate?
(d) What is the maximum magnitude of the magnetic field as the wave propagates?
(e) Write an expression for the B vector as a function of time and position.
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