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4 cards from this section. Quick, good the night before a test.
What are the components of an electromagnetic wave?
Think about the nature of light and its behavior.
What is the speed of electromagnetic waves in a vacuum?
Consider what we know about light.
What is the nature of electromagnetic waves?
Recall the basic definition of electromagnetic waves.
True or False: The speed of electromagnetic waves is slower in a vacuum than in a medium.
Think about light's behavior as it enters different materials.
Calculate the speed of an electromagnetic wave in a medium where the permittivity ε = 8.854 × 10^-12 F/m and the permeability μ = 4π × 10^-7 T·m/A.
Pay close attention to the units and the constants provided.
An electromagnetic wave has a frequency of 1 GHz. Calculate its wavelength.
Remember to convert the frequency if necessary before using the formula.
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