The invention of high-strength Kevlar fiber, used in body armor, is credited to which female chemist? MCQ with Answer and Explanation

Question
The invention of high-strength Kevlar fiber, used in body armor, is credited to which female chemist?
A. Marie Curie
B. Rosalind Franklin
C. Dorothy Hodgkin
D. Stephanie Kwolek
Answer: Option D
Solution (By JKSSB Mock Tests)
Stephanie Kwolek invented the exceptionally strong synthetic fiber Kevlar at DuPont in 1965.
This question belongs to: Static General Knowledge Inventions and Discoveries
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Question #1
The invention of the highly accurate atomic clock configuration using cesium resonance was completed by whom?
A. Lord Kelvin
B. Louis Essen and Jack Parry
C. Isidor Isaac Rabi
D. Albert Einstein
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Correct Answer: Option B

Explanation:
Essen and Parry constructed the first highly functional stable cesium atomic clock standard in 1955 at the National Physical Laboratory.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #2
The invention of the flash memory architecture, ubiquitous in USB drives and SSDs, was developed by whom?
A. Fujio Masuoka
B. Tim Berners-Lee
C. Douglas Engelbart
D. Alan Turing
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Correct Answer: Option A

Explanation:
Fujio Masuoka invented both NOR and NAND flash memory while working at Toshiba in the 1980s.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #3
Who discovered the specific mathematical formula detailing gas density variation relative to molecular weight, known as the diffusion law?
A. John Dalton
B. Amadeo Avogadro
C. Thomas Graham
D. Robert Boyle
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Correct Answer: Option C

Explanation:
Graham's Law states that the rate of effusion or diffusion of a gas is inversely proportional to the square root of its molecular mass.
This question belongs to: Static General Knowledge Inventions and Discoveries
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