The barometers, used to measure atmospheric pressure, was invented by whom? MCQ with Answer and Explanation

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The barometers, used to measure atmospheric pressure, was invented by whom?

A. Evangelista Torricelli

B. Robert Boyle

C. Otto von Guericke

D. Blaise Pascal

Answer: Option A

Solution (By JKSSB Mock Tests)

Evangelista Torricelli, an Italian physicist, invented the mercury barometer in 1643.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Who discovered the positron (the antiparticle of the electron) in 1932?

A. Carl Anderson

B. Robert Millikan

C. Paul Dirac

D. James Chadwick

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Correct Answer: Option A

Explanation:
Carl David Anderson discovered the positron using a cloud chamber to analyze cosmic rays, confirming Paul Dirac's theoretical prediction.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

The invention of the dynamite is credited to which Swedish chemist?

A. Svante Arrhenius

B. Carl Wilhelm Scheele

C. Alfred Nobel

D. Jöns Jacob Berzelius

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Correct Answer: Option C

Explanation:
Alfred Nobel invented dynamite in 1867, and later used his enormous fortune to institute the Nobel Prizes.

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Question #3

Who discovered the process of vulcanization, which makes natural rubber durable and temperature-resistant?

A. Charles Goodyear

B. John Dunlop

C. Leo Baekeland

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Correct Answer: Option A

Explanation:
Charles Goodyear accidentally discovered that heating sulfur-treated natural rubber creates a stable, cross-linked polymer matrix.

This question belongs to: Static General Knowledge Inventions and Discoveries

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