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Which of the following statements about electromagnetic waves is true?

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Question: Which of the following statements about electromagnetic waves is true?

Options:

  1. They require a medium to propagate
  2. They travel at the speed of sound
  3. They are transverse waves
  4. They are longitudinal waves

Correct Answer: They are transverse waves

Solution: 

Electromagnetic waves are transverse waves that do not require a medium to propagate and travel at the speed of light in a vacuum.

Which of the following statements about electromagnetic waves is true?

Practice Questions

Q1
Which of the following statements about electromagnetic waves is true?
  1. They require a medium to propagate
  2. They travel at the speed of sound
  3. They are transverse waves
  4. They are longitudinal waves

Questions & Step-by-Step Solutions

Which of the following statements about electromagnetic waves is true?
  • Step 1: Understand what electromagnetic waves are. They are waves that consist of electric and magnetic fields oscillating perpendicular to each other.
  • Step 2: Learn that electromagnetic waves do not need a medium (like air or water) to travel. They can move through empty space.
  • Step 3: Know that electromagnetic waves travel at the speed of light when in a vacuum, which is approximately 299,792 kilometers per second.
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