21
Pasteurization, the heating of liquids to kill harmful microbes, is named after:
Correct answer: A. Louis Pasteur
French scientist Louis Pasteur developed the process in the 1860s. He also developed vaccines for rabies and anthrax.
easy
Inventions and Discoveries MCQs – Page 2
Solved MCQs on famous inventions and scientific discoveries and the people behind them, from the telephone and penicillin to DNA and the World Wide Web.
26 MCQsUpdated 27 October 2026
- 22
Who proposed that the Sun, not the Earth, is at the centre of the solar system?
Correct answer: C. Nicolaus Copernicus
Nicolaus Copernicus set out his heliocentric model in 1543, replacing Ptolemy's Earth-centred system.
easy - 23
The theory of evolution by natural selection was proposed by:
Correct answer: C. Charles Darwin
Charles Darwin published "On the Origin of Species" in 1859. Alfred Russel Wallace reached similar ideas independently.
easy - 24
The Muslim scientist known for his pioneering work on optics, "Kitab al-Manazir", was:
Correct answer: B. Ibn al-Haytham
Ibn al-Haytham (Alhazen) explained vision as light entering the eye and stressed experiment. He is often called the father of modern optics.
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The word "algebra" comes from the title of a book by which mathematician?
Correct answer: C. Al-Khwarizmi
"Algebra" comes from "al-jabr" in the title of Muhammad ibn Musa al-Khwarizmi's 9th-century book. The word "algorithm" comes from his name.
Read detailsmedium - 26
The first working television system was publicly demonstrated in 1926 by:
Correct answer: D. John Logie Baird
Scottish engineer John Logie Baird gave the first public demonstration of a working television system in London in 1926.
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