Q. Which one of the following does a TV remote control unit use to operate a TV set?

  • (A) Light waves
  • (B) Sound waves
  • (C) Microwaves
  • (D) Radio waves
✅ Correct Answer: (D) Radio waves

Published by Deepak Sahoo ⭐ 11.23K Points at 19-Feb-2022 06:50 am in Physics

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