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

Multiple choice

Which scientist discovered the electron?

  1. J.J. Thomson

  2. Ernest Rutherford

  3. Niels Bohr

  4. Max Planck
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

J.J. Thomson discovered the electron in 1897, providing fundamental insights into the structure of atoms.

Multiple choice

Which scientist discovered the structure of benzene?

  1. Friedrich Kekule

  2. John Dalton

  3. Dmitri Mendeleev

  4. Antoine Lavoisier
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Friedrich Kekule proposed the hexagonal structure of benzene in 1865, providing a fundamental understanding of aromatic compounds.

Multiple choice

Who invented the transistor?

  1. John Bardeen

  2. Walter Brattain

  3. William Shockley

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

John Bardeen, Walter Brattain, and William Shockley invented the transistor in 1947, laying the foundation for modern electronics.

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 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

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.'