Q. Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit

  • (A) Visible light
  • (B) X-rays
  • (C) Ultraviolet light
  • (D) Radio waves
✅ Correct Answer: (A) Visible light

Published by Ram Sharma ⭐ 193.88K Points at 20-Nov-2021 01:11 pm in Physics

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