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.

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Inventors and Scientific Discoveries Questions

Multiple choice

What did Gregor Mendel propose in his laws of heredity?

  1. The law of segregation

  2. The law of independent assortment

  3. The law of dominance

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Gregor Mendel, an Austrian monk and scientist, proposed the laws of heredity, including the law of segregation, the law of independent assortment, and the law of dominance, in the mid-19th century.

Multiple choice

Who discovered the structure of the double helix of DNA?

  1. James Watson and Francis Crick

  2. Rosalind Franklin and Maurice Wilkins

  3. Erwin Chargaff

  4. Alfred Hershey and Martha Chase
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

James Watson and Francis Crick discovered the structure of the double helix of DNA in 1953, based on the X-ray crystallography data obtained by Rosalind Franklin and Maurice Wilkins.

Multiple choice

Who was the founder of the first video game education program to offer a degree in video game design?

  1. Ivan Sutherland

  2. David Evans

  3. Edwin Catmull

  4. Jim Clark
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Jim Clark was the founder of the first video game education program to offer a degree in video game design.

Multiple choice

Who proposed the 'input hypothesis' in relation to language acquisition?

  1. B.F. Skinner

  2. Jean Piaget

  3. Stephen Krashen

  4. Lev Vygotsky
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Stephen Krashen proposed the 'input hypothesis,' suggesting that language acquisition occurs naturally when learners are exposed to comprehensible input, slightly beyond their current level of proficiency.

Multiple choice

Which scientist discovered the structure of DNA?

  1. James Watson

  2. Francis Crick

  3. Rosalind Franklin

  4. Maurice Wilkins
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

James Watson and Francis Crick discovered the structure of DNA in 1953.

Multiple choice

Which scientist developed the theory of evolution by natural selection?

  1. Charles Darwin

  2. Alfred Russel Wallace

  3. Thomas Malthus

  4. Jean-Baptiste Lamarck
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Charles Darwin developed the theory of evolution by natural selection, which revolutionized our understanding of the diversity of life on Earth.

Multiple choice

Who invented the transistor?

  1. John Bardeen

  2. Walter Brattain

  3. William Shockley

  4. Gordon Teal
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

John Bardeen, Walter Brattain, and William Shockley invented the transistor in 1947.

Multiple choice

Which scientist discovered the electron?

  1. J.J. Thomson

  2. Ernest Rutherford

  3. Niels Bohr

  4. Albert Einstein
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

J.J. Thomson discovered the electron in 1897.

Multiple choice

Who is credited with introducing the concept of the Turing Machine?

  1. Alan Turing

  2. John von Neumann

  3. Kurt Gödel

  4. Claude Shannon
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Alan Turing introduced the concept of the Turing Machine in his seminal paper, 'On Computable Numbers, with an Application to the Entscheidungsproblem', published in 1936.

Multiple choice

Who is widely credited with inventing the first 3D printer?

  1. Chuck Hull

  2. Scott Crump

  3. Z Corporation

  4. Objet Geometries
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chuck Hull, an American engineer, is often recognized as the inventor of the first 3D printer in 1984.

Multiple choice

Which American cartographer is known for his development of the Universal Transverse Mercator (UTM) projection?

  1. John P. Snyder

  2. Erwin Raisz

  3. Arthur H. Robinson

  4. Charles A. Whitten
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

John P. Snyder is credited with developing the Universal Transverse Mercator (UTM) projection, which is widely used for military and civilian mapping applications.

Multiple choice

Who is credited with inventing the first practical telephone?

  1. Alexander Graham Bell

  2. Thomas Edison

  3. Antonio Meucci

  4. Charles Wheatstone
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Alexander Graham Bell is widely credited with inventing the first practical telephone in 1876.

Multiple choice

Who was the most prominent industrialist of the Gilded Age?

  1. Andrew Carnegie

  2. John D. Rockefeller

  3. J.P. Morgan

  4. Thomas Edison
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Andrew Carnegie was the most prominent industrialist of the Gilded Age. He founded the Carnegie Steel Company, which became the largest steel company in the world.

Multiple choice

Which film explores the life and scientific achievements of Albert Einstein, the renowned physicist who developed the theory of relativity?

  1. The Theory of Everything

  2. Radioactive

  3. Hidden Figures

  4. The Imitation Game
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

"The Theory of Everything" delves into the life and work of Albert Einstein, focusing on his relationship with his wife, Jane Wilde Hawking.

Multiple choice

Which conservationist is known for his work on the concept of 'biodiversity'?

  1. John Muir

  2. Gifford Pinchot

  3. Aldo Leopold

  4. Edward O. Wilson
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Edward O. Wilson, an American biologist and naturalist, is renowned for his work on the concept of 'biodiversity', which refers to the variety of life on Earth. He has been instrumental in promoting the importance of biodiversity conservation and has written extensively on the subject.