Q. Who invented Bifocal Lens?

  • (A) Thomas Alva Edison
  • (B) Benjamin Franklin
  • (C) Rudolf Diesel
  • (D) Alfred B. Nobel
✅ Correct Answer: (B) Benjamin Franklin

Published by Ram Sharma ⭐ 193.88K Points at 27-Jan-2022 10:51 am in General Awareness

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