Who invented the first mechanical computer, known as the 'Difference Engine'? MCQ with Answer and Explanation

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Who invented the first mechanical computer, known as the 'Difference Engine'?

A. John von Neumann

B. Charles Babbage

C. Blaise Pascal

D. Alan Turing

Answer: Option B

Solution (By JKSSB Mock Tests)

Charles Babbage designed the Difference Engine and the Analytical Engine, earning him the title 'Father of the Computer'.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1

Who discovered the phenomenon of specific heat capacity and latent heat in thermodynamics?

A. Antoine Lavoisier

B. Lord Kelvin

C. Joseph Black

D. James Joule

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Correct Answer: Option C

Explanation:
Scottish chemist Joseph Black discovered latent heat and specific heat, laying foundations for thermodynamic science.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

The invention of the modern mechanical cotton picking machine was developed by which brother team?

A. John and Mack Rust

B. Siemens Brothers

C. Montgolfier Brothers

D. Wright Brothers

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Correct Answer: Option A

Explanation:
The Rust brothers patented the automated spindle mechanical cotton harvester in the 1930s, mechanizing Southern agriculture.

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Question #3

Who discovered that stable elements possess unique integer identifiers based on X-ray emission frequencies, restructuring atomic numbers?

A. J.J. Thomson

B. Ernest Rutherford

C. Dmitri Mendeleev

D. Henry Moseley

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Correct Answer: Option D

Explanation:
Moseley proved that ordering chemical elements by nuclear charge (atomic number) resolved inconsistencies in Mendeleev's mass-ordered layout.

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