Who was the first person to develop a commercial electric light? MCQ with Answer and Explanation

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Who was the first person to develop a commercial electric light?

A. Joseph Swan

B. Thomas Edison

C. Humphry Davy

D. Nikola Tesla

Answer: Option B

Solution (By JKSSB Mock Tests)

Edison created a commercially viable light bulb.

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Question #1

Who was the first woman to win the Best Director at Cannes?

A. Kathryn Bigelow

B. Chloé Zhao

C. Sofia Coppola

D. Jane Campion

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Correct Answer: Option D

Explanation:
Jane Campion won the Palme d'Or.

This question belongs to: Static General Knowledge First in the World

Question #2

Which civilization is credited with creating the first writing system, cuneiform?

A. Chinese

B. Indus Valley

C. Sumerian

D. Egyptian

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Correct Answer: Option C

Explanation:
The ancient Sumerians of Mesopotamia developed cuneiform, which is recognized as the earliest known writing system.

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Question #3

Who discovered graphene?

A. Andre Geim and Konstantin Novoselov

B. Paul Dirac

C. Richard Feynman

D. Albert Fert

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Correct Answer: Option A

Explanation:
Geim and Novoselov isolated graphene.

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