Q. Which type of waves are used by a ‘RADAR’ for detecting the presence of an aircraft?

  • (A) Sound waves
  • (B) Electric waves
  • (C) Radio waves
  • (D) Ultrasonic waves
✅ Correct Answer: (C) Radio waves

Published by Mr. Dubey ⭐ 111.42K Points at 27-Jul-2020 09:27 am in Science

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