General Awareness · Science General
Inventors and Scientific Discoveries
4,454 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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Max Planck
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Albert Einstein
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Isaac Newton
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Galileo
A
Correct answer
Explanation
Max Planck is credited with discovering the quantum theory of light in 1900 through his work on blackbody radiation. He introduced the concept that energy is emitted in discrete packets called 'quanta.' Einstein later expanded quantum theory with his work on the photoelectric effect, but Planck founded it.
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Michelson and Morley
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David Livingstone
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Harley Davidson
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Micheal Jackson
A
Correct answer
Explanation
The Michelson-Morley experiment in 1887 disproved the existence of luminiferous ether as the medium for light propagation. Their famous null result showed that the speed of light is constant in all directions, contradicting ether theory. This paved the way for Einstein's special relativity.
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Isaac Asimov
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Heike Kamerlingh Onnes
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Edward Morley
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A Michelson
B
Correct answer
Explanation
Heike Kamerlingh Onnes achieved ultra-low temperatures approaching absolute zero in 1908, discovering superconductivity in mercury in 1911. He was the first to liquefy helium and received the Nobel Prize in Physics in 1913 for his work. Isaac Asimov was a science fiction writer, while Michelson and Morley were involved in ether experiments.
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G. Galileo
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Antone Van Leeuwenhock
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Jacques Daguerre
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I Newton
C
Correct answer
Explanation
Louis Daguerre invented the daguerreotype camera process in 1839, the first publicly available photographic process. The daguerreotype produced a unique positive image on a silvered copper plate. Galileo and Newton were from earlier centuries and not involved in photography.
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Edward Hibberd Johnson
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Granville T. Woods
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Thomas Alva Edison
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Alexander Graham Bell
B
Correct answer
Explanation
Granville T. Woods, known as the "Black Edison," invented the telegraphony in 1885. This device combined the telegraph and telephone, allowing voice communication over telegraph wires.
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French
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British
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Chinese
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Scottish
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Correct answer
Explanation
The 'Parley' code in pirate lore has French linguistic origins. The term 'parley' itself comes from the French word 'parler' meaning 'to speak', referring to the negotiation between pirates and their victims or between opposing pirate crews.
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Oscar
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Nobel
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Victor
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None of the above
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Correct answer
Explanation
Walt Disney won 22 Academy Awards (Oscars) during his career, more than any other individual. He won these for his innovations in animation, including the creation of Mickey Mouse and the first full-length animated feature film Snow White and the Seven Dwarfs.
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Charles Proteus Steinmetz
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Robert Wright
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Willis Carrier
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William Morgan
C
Correct answer
Explanation
Willis Carrier invented modern air conditioning in 1902 while working at a printing plant in Brooklyn, New York. His invention was initially designed to control humidity for printing presses but revolutionized comfort cooling. The first air conditioning system used coils to cool air and remove moisture. The other names listed (Steinmetz, Wright, Morgan) were scientists or inventors in different fields.
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Vladimir Zworykin
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Waldo Semon
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Sir David Brewster
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Edwin Perkins
B
Correct answer
Explanation
Waldo Semon invented PVC (Polyvinyl Chloride) in 1926 while working at B.F. Goodrich Company. He was trying to create a synthetic rubber substitute when he accidentally discovered PVC. The material became widely used in construction, plumbing, and consumer goods. The other names (Zworykin, Brewster, Perkins) were inventors in electronics and other fields.
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Robert Dennard
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Marvin Stone
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Vladimir Zworykin
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Charles Aderton
A
Correct answer
Explanation
Robert Dennard invented Dynamic RAM (DRAM) in 1966 while working at IBM. His invention allowed data to be stored in capacitors and accessed randomly, revolutionizing computer memory. DRAM became the standard memory technology for computers and electronic devices. The other names (Stone, Zworykin, Aderton) were not associated with memory invention.
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Rachel Brown
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Vladimir Zworykin
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Duramold
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Richard Hollingshead
D
Correct answer
Explanation
Richard Hollingshead invented the drive-in theater in 1933 and opened the first one in Camden, New Jersey. His invention allowed families to watch movies from their cars, combining the popularity of automobiles with cinema. The first drive-in could accommodate 400 cars and became an American cultural phenomenon. The other names (Brown, Zworykin, Duramold) are not associated with this invention.
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Vladimir Zworykin
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Waldo Semon
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Sir David Brewster
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Edwin Perkins
B
Correct answer
Explanation
Waldo Semon invented PVC (Polyvinyl Chloride) in 1926 while working at B.F. Goodrich Company. He was trying to create a synthetic rubber substitute when he accidentally discovered PVC. The material became widely used in construction, plumbing, and consumer goods. The other names (Zworykin, Brewster, Perkins) were inventors in electronics and other fields.
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Robert Dennard
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Marvin Stone
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Vladimir Zworykin
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Charles Aderton
A
Correct answer
Explanation
Robert Dennard invented the one-transistor DRAM cell in 1966 while at IBM, which revolutionized computer memory by making it smaller and more efficient. Marvin Stone was known for inventing the drinking straw, Vladimir Zworykin for television technology, and Charles Aderton appears to be a distractor.
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Rachel Brown
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Vladimir Zworykin
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Duramold
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Richard Hollingshead
D
Correct answer
Explanation
Richard Hollingshead invented the drive-in theater/movie concept in 1933 and patented it, creating a new entertainment experience where people could watch films from their cars. Vladimir Zworykin was a television pioneer, while the other options are fictional or unrelated.
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Franklin
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Joseph Henry
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Michael Faraday
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James Watt
C
Correct answer
Explanation
Michael Faraday discovered electromagnetic induction in 1831, which is the principle behind electric motors - his work enabled the conversion of electrical energy into mechanical motion. Joseph Henry also worked on electromagnetism but Faraday's discovery was foundational for electric motor technology.