General Knowledge - Inventions - Discussion

Discussion :: Inventions - Section 1 (Q.No.59)

59. 

Who invented Bifocal Lens?

[A]. Alfred B. Nobel
[B]. Thomas Alva Edison
[C]. Benjamin Franklin
[D]. Rudolf Diesel

Answer: Option C

Explanation:

No answer description available for this question.

Suhas Tr said: (Feb 17, 2013)  
Because He Invented This BIFOCAL Glass So The Words Which Are Far We Can See Near And Clear, He Divide The Glass Into Equal Piece And Made A Frame To Set The Glass.

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