AP Physics B Practice Exam

Category - Introductory Physics

X-ray waves and infrared waves are both electromagnetic waves. Which of the following describes another property x-ray waves and infrared waves share?
  1. Both waves are longitudinal.
  2. Both waves have the same frequency.
  3. Both waves have the same wavelength.
  4. Both waves travel at the same speed in a vacuum.
Explanation
Answer: D - Both waves travel at the same speed in a vacuum.
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