Electromagnetic Waves as Sinusoidal Waves Video Lessons

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Problem: An electromagnetic wave of wavelength 435 nm is traveling in vacuum in the –z direction. The electric field has an amplitude of 2.70 x 10-3 V/m and is parallel to the x axis. What are the frequency and the magnetic-field amplitude of this wave?Which of the following are known quantities for this electromagnetic wave?Check all that apply.A.) frequencyB.) wavelengthC.) speedD.) direction of propagationPart B.) Which of the following are known quantities for this electromagnetic wave?Check all that apply.A.) amplitude of the electric fieldB.) amplitude of the magnetic fieldC.) direction of the electric fieldD.) direction of the magnetic field

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In this problem, we'll interpret the information presented in the question and answer the questions.

We know that:

Wavelength = 435 nm

The direction of propagation: -z direction

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Problem Details

An electromagnetic wave of wavelength 435 nm is traveling in vacuum in the –z direction. The electric field has an amplitude of 2.70 x 10-3 V/m and is parallel to the x axis. What are the frequency and the magnetic-field amplitude of this wave?


Which of the following are known quantities for this electromagnetic wave?
Check all that apply.
A.) frequency
B.) wavelength
C.) speed
D.) direction of propagation

Part B.) Which of the following are known quantities for this electromagnetic wave?
Check all that apply.
A.) amplitude of the electric field
B.) amplitude of the magnetic field
C.) direction of the electric field
D.) direction of the magnetic field

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