Who discovered the radioactive elements Radium and Polonium? MCQ with Answer and Explanation
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Question #1
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The invention of synthetic nylon fiber, which replaced silk in textiles, was led by which chemist at DuPont?
Correct Answer: Option C
Explanation:
Wallace Carothers invented Nylon (Polyamide 6,6) and Neoprene synthetic rubber in the 1930s.
Wallace Carothers invented Nylon (Polyamide 6,6) and Neoprene synthetic rubber in the 1930s.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
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Who discovered the optical law of refraction independently, which relates the angles of incidence and refraction?
Correct Answer: Option C
Explanation:
Willebrord Snellius formulated the law of refraction (Snell's Law) in 1621, determining refractive index constants.
Willebrord Snellius formulated the law of refraction (Snell's Law) in 1621, determining refractive index constants.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
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The invention of the common computing networking layout known as TCP/IP was co-developed by whom?
Correct Answer: Option D
Explanation:
Cerf and Kahn designed the transmission control and internet communication protocols for ARPANET during the 1970s.
Cerf and Kahn designed the transmission control and internet communication protocols for ARPANET during the 1970s.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
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