Which of the following persons invented the Magnifying glass?

Options :
  1. Johann Zahn
  2. Roger Bacon
  3. Salvino D'Armati
  4. Hippolyte Marie-Davy


Answer and Explanation :-

Answer: Option 2

Explanation:

Sorry there is no explanation for this answer. Please help others by posting your response below

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : Which of the following British inventors is credited with inventing the first lawn mower in 1830?

Next Question : Which of the following persons invented the first Neon lamp?

Click here for free online test on Discovery & Inventions

Responses


 (Getemail alerts when others member replies)







What strange places our lives can carry us to, what dark passages.
-Justin Cronin The Passage