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Questions and Answers
Which of the following is a characteristic of electromagnetic waves?
Which of the following is a characteristic of electromagnetic waves?
- They only travel in straight lines
- They require a medium to propagate
- They can travel through a vacuum (correct)
- They have no impact on matter
What is the speed of electromagnetic waves in a vacuum?
What is the speed of electromagnetic waves in a vacuum?
- 150,000,000 meters per second
- 200,000,000 meters per second
- 100,000,000 meters per second
- 299,792,458 meters per second (correct)
Which of the following electromagnetic waves has the shortest wavelength?
Which of the following electromagnetic waves has the shortest wavelength?
- Radio waves
- X-rays
- Gamma rays (correct)
- Microwaves
