A sinusoidal electromagnetic wave propagates in a vacuum in the positive x-direction. The B⃗ field oscillates in the z-direction. The wavelength of the wave is 30 nm and the amplitude of the B⃗ field oscillations is 1.0 × 10−2 T.
Part A Part complete What is the amplitude of the E⃗ field oscillations? Express your answer with the appropriate units. Emax = 3.0×106 NC
Part B Part complete Select the correct equation that describes the B⃗ field of the wave as a function of time and location. Bz=(3.0×106T)cos[2π(t1.0×10−16s−x3.0×10−8m)] Bz=(3.0×106T)cos[t1.0×10−16s−x3.0×10−8m] Bz=(1.0×10−2T)cos[2π(t1.0×10−16s+x3.0×10−8m)] Bz=(1.0×10−2T)cos[2π(t1.0×10−16s−x3.0×10−8m)]
Correct Part C Part complete Select the correct equation that describes the E⃗ field of the wave as a function of time and location. Ey=(3.0×106N/C)cos[2π(t1.0×10−16s+x3.0×10−8m)] Ey=(3.0×106N/C)cos[2π(t1.0×10−16s−x3.0×10−8m)] Ey=(1.0×10−2N/C)cos[2π(t1.0×10−16s−x3.0×10−8m)] Ey=(1.0×10−2N/C)cos[t1.0×10−16s−x3.0×10−8m]
*****I only need the last question:
I don't understand these terms. what justifies far?:
What type of electromagnetic radiation is this?
A)near-field radiation
B)far-field radiation
A sinusoidal electromagnetic wave propagates in a vacuum in the positive x-direction. The B⃗ field oscillates...
A plane electromagnetic wave
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(b) Parallel to which axis does the magnetic field oscillate? (c)
When the electric field component is in the positive direction of
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Find wavelength.
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