General Awareness · Science General
Inventors and Scientific Discoveries
4,616 Questions
This hub provides questions related to great inventors and their scientific discoveries. It covers the inventors of the telephone, radio, and microchips, alongside Nobel Prize winners. These facts are crucial for the general awareness section of major competitive exams.
Famous inventionsNobel Prize winnersScientific conceptsKey inventors
Inventors and Scientific Discoveries Questions
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Niels Bohr
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Robert Hooke
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Willard Libby
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William Harvey
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Sir Alexander Fleming
D
Correct answer
Explanation
This is the correct option. The circulation of blood was discovered by William Harvey.
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Louis Pasteur
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Garbiel Fahrenheit
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Lord Kelvin
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Robert Boyle
C
Correct answer
Explanation
Lord Kelvin (William Thomson) proposed the absolute temperature scale where 0 K equals -273.15°C (rounded to -273°C). He developed the concept of absolute zero based on theoretical work on thermodynamics. Louis Pasteur worked in microbiology, Fahrenheit developed the mercury thermometer scale, and Boyle worked on gas laws.
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Henry Becquerel
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Charles Darwin
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James Joule
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Henry Cavendish
D
Correct answer
Explanation
Henry Cavendish discovered hydrogen in 1766. He isolated the gas by reacting metals with acids and called it 'inflammable air'. Later, Lavoisier named it hydrogen.
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Michael Faraday
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Nikola Tesla
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James Watt
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John Logie Baird
D
Correct answer
Explanation
John Logie Baird is credited with inventing the first working television in the 1920s. He demonstrated the first mechanical TV system in 1926, though electronic TV was later developed by others.
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Ernst Haeckel
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Sewall Wright
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Hugo de Vries
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Rudolf Virchow
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Kary Mullis
D
Correct answer
Explanation
Rudolf Virchow, the famous pathologist of 19th century, is credited with postulating the path breaking concept of the causal link between inflammation and cancer.
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Albrecht Kossel
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Kary Mullis
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Michael Tswett
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Norman Borlaug
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Richard Wilstatter
A
Correct answer
Explanation
Albrecht Kossel obtained the Nobel Prize for investigating the chemistry of nucleus.
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reassorted
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amplified
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camouflaged
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reduplicated
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transistorized
A
Correct answer
Explanation
This sentence is based on genetics, which implies that discrete units or genes pass on characters from parents to offsprings and in second and later generations exhibit these characters in all possible combinations i.e. they assort themselves in all combinations. Hence, (1) is the answer.
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Albert Sabin
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Burkholder
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Luise Pasture
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Jonas Salk
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Gustave Effel
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Gulliver
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Abraham Lincon
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General Manekshaw
A
Correct answer
Explanation
Gustave Eiffel was the French engineer who designed the famous Eiffel Tower in Paris, completed in 1889. The tower was named after him. The question contains a spelling variation (Effel vs Eiffel).
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F.W. Taylor
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F.M. Taylor
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M.F. Taylor
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Henry Fayol
A
Correct answer
Explanation
Frederick Winslow Taylor (F.W. Taylor) developed scientific management, focusing on efficiency, time-motion studies, and optimizing worker productivity. Henry Fayol developed administrative theory with 14 principles of management.
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Robert Hook
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Leuwenhoek
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Splanzni
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Jenner
B
Correct answer
Explanation
Antonie van Leeuwenhoek, a Dutch scientist, crafted powerful single-lens microscopes and was the first to observe and describe microorganisms. While Robert Hooke also worked with microscopes, Leeuwenhoek is specifically credited with developing the simple microscope.
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Edmond Leyland
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Lewis Benz
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Lawrence Richie
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Blaise Pascal
D
Correct answer
Explanation
Blaise Pascal, the renowned French mathematician and philosopher, is credited with founding the first public bus service in 1662. He developed a system of horse-drawn carriages that operated on fixed routes and schedules. The other individuals listed were not involved in the creation of public transit.
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Rutherford
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Darwin
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Priestley
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Mendel
C
Correct answer
Explanation
Joseph Priestley is credited with the discovery of oxygen in 1774 by heating mercuric oxide. Although Carl Wilhelm Scheele discovered it earlier, Priestley published his findings first.
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Mendel
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Newton
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Rutherford
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Darwin
A
Correct answer
Explanation
Gregor Mendel, an Augustinian friar, is known as the father of genetics for his experiments with pea plants. He established the laws of segregation and independent assortment, which explain how traits are passed from parents to offspring.
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Dennis Ritchie
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Ken Thompson
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Bill Gates
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Bjarne Stroustrup
D
Correct answer
Explanation
C++ was developed by Bjarne Stroustrup in 1979. Hence, this is the correct answer.