Q. Which technology is used in Compact disks?

  • (A) Mechanical
  • (B) Electrical
  • (C) Electro Magnetic
  • (D) Laser
✅ Correct Answer: (D) Laser

Published by Sikhar Chaudhary ⭐ 6.79K Points at 19-Nov-2021 08:32 am in Computer

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