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

Who invented the CCD sensor?

  1. Willard Boyle and George E. Smith

  2. Steven Sasson

  3. Eric Fossum

  4. James Clark Maxwell
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Willard Boyle and George E. Smith invented the CCD sensor in 1969.

Multiple choice

Who is credited with developing the steam engine, a pivotal invention of the Industrial Revolution?

  1. Thomas Savery

  2. James Watt

  3. Thomas Newcomen

  4. Richard Arkwright
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

James Watt's improvements to the steam engine made it more efficient and versatile, leading to its widespread adoption.

Multiple choice

What was the name of the British engineer who played a pivotal role in the development of the steam locomotive?

  1. Thomas Savery

  2. James Watt

  3. Thomas Newcomen

  4. George Stephenson
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

George Stephenson was a British engineer who played a pivotal role in the development of the steam locomotive, including the Rocket, which was used on the Stockton and Darlington Railway.

Multiple choice

Which scientist is credited with first proposing the Panspermia Hypothesis?

  1. Louis Pasteur

  2. Francis Crick

  3. Svante Arrhenius

  4. Charles Darwin
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Svante Arrhenius, a Swedish chemist, first proposed the Panspermia Hypothesis in 1903. He suggested that microorganisms could be transported from one planet to another through space.

Multiple choice

Which author wrote the book "The Soil and Health: A Study of Organic Agriculture"?

  1. Albert Howard

  2. J.I. Rodale

  3. F.H. King

  4. E.B. Balfour
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Albert Howard is the author of the book "The Soil and Health: A Study of Organic Agriculture", which explores the relationship between soil health and human health, and the importance of organic farming.

Multiple choice

Which scientific discovery led to the understanding of the greenhouse effect?

  1. The discovery of carbon dioxide by Joseph Black

  2. The experiments of John Tyndall on the absorption of infrared radiation

  3. The development of the theory of radiative forcing by Svante Arrhenius

  4. The observation of the greenhouse effect on Venus by Carl Sagan
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

John Tyndall's experiments in the 1850s demonstrated that certain gases, including carbon dioxide and water vapor, absorb infrared radiation, leading to the understanding of the greenhouse effect.

Multiple choice

Who is credited with inventing the modern canning process?

  1. Louis Pasteur

  2. Nicolas Appert

  3. Antoine Lavoisier

  4. Robert Koch
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Nicolas Appert, a French chef and confectioner, is widely recognized as the inventor of the modern canning process. His experiments with sealing food in glass jars and heating them to kill microorganisms laid the foundation for the canning industry.

Multiple choice

Which scientist is widely credited with proposing the Panspermia Hypothesis?

  1. Charles Darwin

  2. Louis Pasteur

  3. Svante Arrhenius

  4. Francis Crick
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Svante Arrhenius, a Swedish chemist, first proposed the Panspermia Hypothesis in 1903.

Multiple choice

Who is credited with designing the Eiffel Tower?

  1. Gustave Eiffel

  2. Stephen Sauvestre

  3. Maurice Koechlin

  4. Émile Nouguier
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gustave Eiffel was a French engineer and architect who is best known for designing the Eiffel Tower. The tower was built as the entrance arch for the 1889 World's Fair in Paris, France.

Multiple choice

Which scientist is widely credited with first proposing the Panspermia Hypothesis?

  1. Louis Pasteur

  2. Svante Arrhenius

  3. Francis Crick

  4. Carl Sagan
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Swedish chemist and physicist Svante Arrhenius first proposed the Panspermia Hypothesis in 1903. He suggested that microorganisms could be transported between planets through radiation pressure.

Multiple choice

Who is considered the father of modern recording?

  1. Thomas Edison

  2. Emile Berliner

  3. Alexander Graham Bell

  4. Guglielmo Marconi
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Thomas Edison invented the phonograph in 1877, which was the first device capable of recording and reproducing sound.

Multiple choice

Bhabha's work on cosmic rays led to the discovery of:

  1. The muon

  2. The positron

  3. The neutrino

  4. The pion
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Homi J. Bhabha's studies of cosmic rays led to the discovery of the positron, the antiparticle of the electron, in 1936.

Multiple choice

Which of the following game theorists is NOT featured in the Game Theory: A Mathematical Journey exhibition?

  1. John von Neumann

  2. John Nash

  3. Claude Shannon

  4. Alan Turing
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Alan Turing is not featured in the Game Theory: A Mathematical Journey exhibition because he is not a game theorist.

Multiple choice

Which scientist is widely credited with proposing the concept of quantum entanglement?

  1. Albert Einstein

  2. Erwin Schrödinger

  3. Werner Heisenberg

  4. John Bell
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Erwin Schrödinger is widely credited with proposing the concept of quantum entanglement in his 1935 paper titled 'The Present Situation in Quantum Mechanics.'

Multiple choice

The Nilgiri Mountain Railway was constructed by which British engineer?

  1. John Fowler

  2. George Turnbull

  3. Robert Stephenson

  4. William Huddleston
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

William Huddleston was the British engineer who designed and supervised the construction of the Nilgiri Mountain Railway.