Multiple choice general knowledge

Who invented Bifocal Lens?

  1. Alfred B. Nobel

  2. Thomas Alva Edison

  3. Benjamin Franklin

  4. Rudolf Diesel
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C Correct answer
Explanation

Benjamin Franklin invented bifocal lenses in the 1780s to address his own vision problems, allowing him to see both near and far with the same glasses. Alfred Nobel is known for dynamite, Edison for the light bulb and phonograph, and Diesel for the diesel engine.

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