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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Louis Pasteur
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Lister
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Beijerinck
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Pfeffer
C
Correct answer
Explanation
Martinus Willem Beijerinck was a Dutch microbiologist and botanist. In 1901, he discovered that symbiotic nitrogen fixation is done by rhizobium.
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Paraffin
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Alpha particles
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Canal rays
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Cathode rays
D
Correct answer
Explanation
J.J. Thomson used cathode rays in his experiment. Rays attracted a positively charged plate kept over the cathode ray tube. It made him infer that the rays are made up of negatively charged particles, which were later called electrons.
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Indian
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Egyptian
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Greek
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American
A
Correct answer
Explanation
The mathematical concept of zero as a number and its use in the decimal system was developed by ancient Indian mathematicians, most notably Aryabhata and Brahmagupta.
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Clifford Bery
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George Boole
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Atanasuff and Berry
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John V. Atanasoff
C
Correct answer
Explanation
John Vincent Atanasoff and Clifford Berry developed the Atanasoff-Berry Computer (ABC) at Iowa State University between 1937 and 1942. It is recognized as the first electronic digital computing device, utilizing vacuum tubes and binary math. While other computers like ENIAC followed, the ABC was the pioneer in electronic digital computing.
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Darwin
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Watson and Crick
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Mendel
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Meselson-Stahl
B
Correct answer
Explanation
James Watson and Francis Crick proposed the double-helical structure of DNA in 1953. Their model explained how genetic information is stored and replicated in living organisms.
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Charles Babb age
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Dr Herman Hollenith
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Blaise pascal
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None of these
B
Correct answer
Explanation
Herman Hollerith developed a punched card tabulating machine to help process data for the 1890 U.S. Census. His company later merged with others to eventually become IBM.
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Dennis Ritchie
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Blaise Pascal
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John Backus
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None of these
A
Correct answer
Explanation
Dennis Ritchie created the C programming language at Bell Labs in the early 1970s. It was designed to be a general-purpose language and was used to rewrite the Unix operating system.
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Sydney Brenner
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Paul Lauterbur
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Peter Mansfield
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Both (b) and (c)
D
Correct answer
Explanation
The 2003 Nobel Prize in Physiology or Medicine was awarded jointly to Paul Lauterbur and Peter Mansfield for their seminal discoveries that led to the development of Magnetic Resonance Imaging (MRI).
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Carl Linnaeus
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Charles Darwin
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Erasmus Darwin
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Thomas Henry Huxley
C
Correct answer
Explanation
Erasmus Darwin wrote 'Zoonomia' in 1794. It deals with pathology, anatomy, psychology and functioning of the body.
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|
|
| 1. Lady Gaga |
d. Beetle |
| 2. Arnold Schwarzenegger |
c. Spider |
| 3. Aesop |
b. Wasp |
| 4. Nelson Mandela |
a. Fish |
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|
|
| 1. Lady Gaga |
b. Wasp |
| 2. Arnold Schwarzenegger |
d. Beetle |
| 3. Aesop |
a. Fish |
| 4. Nelson Mandela |
c. Spider |
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|
|
| 1. Lady Gaga |
c. Spider |
| 2. Arnold Schwarzenegger |
a. Fish |
| 3. Aesop |
d. Beetle |
| 4. Nelson Mandela |
b. Wasp |
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|
|
| 1. Lady Gaga |
d. Beetle |
| 2. Arnold Schwarzenegger |
c. Wasp |
| 3. Aesop |
b. Spider |
| 4. Nelson Mandela |
a. Fish |
B
Correct answer
Explanation
This is the correct match.
Wasp (Aleiodes gaga) is named after Lady Gaga.
Beetle (Agra schwarzeneggeri) is named after Arnold Schwarzenegger.
Fish (Aesopichthys) is named after Aesop.
Spider (Anelosimus nelsoni) is named after Nelson Mandela.
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discovery of the DNA structure
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first kidney transplant
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creation of the world's first cloned sheep
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discovery of genes
C
Correct answer
Explanation
Dr. Ian Wilmut was a British biologist who led the research team at the Roslin Institute that successfully cloned the first mammal from an adult cell. This sheep, named Dolly, was born in 1996 and represented a massive breakthrough in genetic research. He is not the discoverer of DNA structure, which is credited to Watson, Crick, and Franklin.
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Medicine
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Physics
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Chemistry
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Economics
D
Correct answer
Explanation
The Nobel Prize in Economics was established in 1968 by Sweden's central bank and was first awarded in 1969. The other five categories (Physics, Chemistry, Medicine, Literature, and Peace) were established by Alfred Nobel's will and first awarded in 1901. Economics is the only category not part of the original set of prizes.
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Faraday
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Gauss
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Benjamin Franklin
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Madam Curie
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destroying
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testing
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resurrecting
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questioning
C
Correct answer
Explanation
The right answer is (3).
Intelligent designs derive from Paley. Hence, proponents of intelligent design can only resurrect Paley's argument.
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Albert Einstein
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John Browning
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Michael Faraday
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Thomas Alva Edison
D
Correct answer
Explanation
Thomas Alva Edison was a prolific American inventor responsible for the phonograph, the practical incandescent light bulb, and early motion picture technology.