Q. Which of the following wave CANNOT propagate in a vacuum?

  • (A) X-rays
  • (B) Radio waves
  • (C) UV-rays
  • (D) Ultrasonic waves
✅ Correct Answer: (D) Ultrasonic waves

Published by Mr. Dubey ⭐ 111.54K Points at 19-Jun-2022 08:08 pm in Physics

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