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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the speed of electromagnetic waves in a vacuum?
💡 Hint: Remember the speed of light.
Question 2
Easy
What happens to electromagnetic waves when they enter a different medium?
💡 Hint: Think about how light behaves in water.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the speed of electromagnetic waves in a vacuum?
- 3×10^8 m/s
- 1×10^8 m/s
- 3×10^6 m/s
💡 Hint: This is the maximum speed for all electromagnetic waves in a vacuum.
Question 2
True or False: Reflection and refraction are the same phenomenon.
- True
- False
💡 Hint: Remember the definitions of both terms.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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?
💡 Hint: Use the refractive index formula.
Question 2
Describe how diffraction affects communication technology like mobile phones.
💡 Hint: Think about how you use your smartphone in a crowded city.
Challenge and get performance evaluation