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5 cards from this section. Quick, good the night before a test.
What is the speed of electromagnetic waves in a vacuum?
Remember the speed of light.
What happens to electromagnetic waves when they enter a different medium?
Think about how light behaves in water.
What is the speed of electromagnetic waves in a vacuum?
This is the maximum speed for all electromagnetic waves in a vacuum.
True or False: Reflection and refraction are the same phenomenon.
Remember the definitions of both terms.
If the speed of light in a certain medium is found to be 2.25×10^8 m/s, what is the refractive index of this medium?
Use the refractive index formula.
Describe how diffraction affects communication technology like mobile phones.
Think about how you use your smartphone in a crowded city.
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