10.7 - The Speed of Electromagnetic Waves
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Practice Questions
Test your understanding with targeted questions
What is the speed of electromagnetic waves in a vacuum?
💡 Hint: Think about the speed of light.
What is the refractive index?
💡 Hint: It's related to how light bends.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the speed of electromagnetic waves in a vacuum?
💡 Hint: This speed is often referred to as the speed of light.
True or False: The refractive index of a vacuum is greater than 1.
💡 Hint: Think about how light behaves in a vacuum.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Calculate the speed of light in diamond, where the refractive index is 2.42.
💡 Hint: Remember to use the given refractive index in your calculation.
In telecommunications, if an electromagnetic wave travels through fiber optic cable at 2×10^8 m/s, what is the refractive index of the medium?
💡 Hint: Use the formula to isolate n and make your calculation.
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