Who discovered the phenomenon of piezoelectricity in crystals in 1880? MCQ with Answer and Explanation

Question
Who discovered the phenomenon of piezoelectricity in crystals in 1880?
A. Pierre and Jacques Curie
B. Wilhelm Röntgen
C. Heinrich Hertz
D. Marie Curie
Answer: Option A
Solution (By JKSSB Mock Tests)
Brothers Pierre and Jacques Curie discovered that physical stress applied to certain crystals generates an electric charge.
This question belongs to: Static General Knowledge Inventions and Discoveries
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Practice More Inventions and Discoveries Questions

Question #1
Who discovered that the chemical element Chromium is isolated from Siberian red lead ore matrices?
A. Martin Heinrich Klaproth
B. Antoine Lavoisier
C. Carl Wilhelm Scheele
D. Louis-Nicolas Vauquelin
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Correct Answer: Option D

Explanation:
Vauquelin isolated chromium in 1797 by treating crocoite mineral crystals with hydrochloric acid compounds.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #2
The invention of the multi-stage flash distillation process for large-scale seawater desalination was pioneered by whom?
A. James Watt
B. Robert Silver
C. Humphry Davy
D. Charles Parsons
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Correct Answer: Option B

Explanation:
Professor Robert Silver patented the highly efficient multi-stage flash distillation process in the late 1950s.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #3
The invention of the common military defensive structure known as Barbed Wire was patented in its definitive commercial form by whom?
A. Joseph Glidden
B. Eli Whitney
C. John Deere
D. Cyrus McCormick
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Correct Answer: Option A

Explanation:
Joseph Glidden patented the two-wire twisted barb lock mechanism in 1874, changing open-range farming and livestock control.
This question belongs to: Static General Knowledge Inventions and Discoveries
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