Who invented the first practical mechanical television system? MCQ with Answer and Explanation

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Who invented the first practical mechanical television system?

A. Vladimir Zworykin

B. Philo Farnsworth

C. Guglielmo Marconi

D. John Logie Baird

Answer: Option D

Solution (By JKSSB Mock Tests)

John Logie Baird demonstrated the first working mechanical television system in the 1920s.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Who invented the first working internal combustion engine powered by gasoline?

A. Rudolf Diesel

B. Nikolaus Otto

C. Henry Ford

D. Karl Benz

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Correct Answer: Option D

Explanation:
Karl Benz is widely acknowledged as the inventor of the modern gasoline-powered automobile (1885/1886) using an internal combustion engine.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

Who discovered the phenomenon of nuclear magnetic resonance (NMR), which forms the basis of modern MRI scanners?

A. Felix Bloch

B. Isidor Isaac Rabi

C. Paul Lauterbur

D. Peter Mansfield

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Correct Answer: Option B

Explanation:
Isidor Isaac Rabi discovered nuclear magnetic resonance in 1938, for which he was awarded the Nobel Prize in Physics in 1944.

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Question #3

Who invented the first functional integrated circuit (microchip) in 1958?

A. Douglas Engelbart

B. Alan Turing

C. Jack Kilby and Robert Noyce

D. John Bardeen

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Correct Answer: Option C

Explanation:
Jack Kilby of Texas Instruments constructed the first working monolithic integrated circuit on a germanium chip, winning a Nobel Prize.

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