The invention of the standard mechanical typewriter carbon paper mechanism to replicate text was patented by whom? MCQ with Answer and Explanation

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The invention of the standard mechanical typewriter carbon paper mechanism to replicate text was patented by whom?

A. Pellegrino Turri

B. Christopher Sholes

C. Walter Hunt

D. John Loud

Answer: Option A

Solution (By JKSSB Mock Tests)

Pellegrino Turri developed early carbon pigment transfer papers in 1806 to functionalize his experimental typing machines.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Who discovered that cells arise only from pre-existing cells via division, completing cell theory?

A. Rudolf Virchow

B. Theodor Schwann

C. Robert Hooke

D. Matthias Schleiden

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Correct Answer: Option A

Explanation:
Rudolf Virchow popularized the Latin aphorism 'Omnis cellula e cellula' in 1855, establishing modern cellular pathology basics.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

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Who discovered that atomic structural properties are governed by specific continuous wave function coordinates, formulating Wave Mechanics?

A. Max Born

B. Erwin Schrödinger

C. Werner Heisenberg

D. Niels Bohr

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Correct Answer: Option B

Explanation:
Erwin Schrödinger formulated the Schrödinger Equation in 1925, introducing wave function dynamics to quantum models.

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Question #3

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Who discovered the exact relationship between mechanical work done and heat generated, leading to the SI unit of energy?

A. Rudolf Clausius

B. Lord Kelvin

C. James Prescott Joule

D. James Watt

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Correct Answer: Option C

Explanation:
James Prescott Joule established the mechanical equivalent of heat through rigorous thermodynamic experiments.

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