Who invented the printing press with movable type around 1440? MCQ with Answer and Explanation

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Who invented the printing press with movable type around 1440?

A. William Caxton

B. Johannes Gutenberg

C. Leonardo da Vinci

D. Bi Sheng

Answer: Option B

Solution (By JKSSB Mock Tests)

Johannes Gutenberg introduced movable-type printing to Europe, sparking the Printing Revolution.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1

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Who discovered that atomic radioactive decay emits discrete high-energy electromagnetic waves named 'Gamma Rays'?

A. Henri Becquerel

B. Ernest Rutherford

C. Marie Curie

D. Paul Villard

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Correct Answer: Option D

Explanation:
French chemist Paul Villard discovered gamma radiation in 1900 while studying uranium emission shielding paths.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

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The concept of 'Inertia' was first formulated by which scientist before being formalized into laws by Newton?

A. Johannes Kepler

B. Nicolaus Copernicus

C. Galileo Galilei

D. Aristotle

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Correct Answer: Option C

Explanation:
Galileo Galilei developed the early concept of inertia, which Isaac Newton later refined into his First Law of Motion.

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Question #3

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Who discovered the primary mathematical law detailing electric current branching paths, known as the junction rule?

A. Michael Faraday

B. André-Marie Ampère

C. Georg Ohm

D. Gustav Kirchhoff

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Correct Answer: Option D

Explanation:
Kirchhoff's Junction Rule states that the total current entering any electrical network node precisely matches the total current exiting it.

This question belongs to: Static General Knowledge Inventions and Discoveries

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