General Awareness ยท 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.

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Inventors and Scientific Discoveries Questions

Multiple choice

Which scientist is credited with the invention of the transistor, a fundamental component of modern electronics?

  1. John Bardeen

  2. Walter Brattain

  3. William Shockley

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

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

Multiple choice

Who invented the first mechanical computer?

  1. Charles Babbage

  2. Ada Lovelace

  3. Alan Turing

  4. John Atanasoff
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Charles Babbage is credited with inventing the first mechanical computer, known as the Analytical Engine, in the 19th century.

Multiple choice

Which scientific breakthrough led to the development of the transistor?

  1. Discovery of the Electron

  2. Quantum Theory

  3. Theory of Relativity

  4. Solid-State Physics
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The development of the transistor was made possible by advancements in solid-state physics and the understanding of semiconductor materials.

Multiple choice

Which scientific discovery led to the development of the laser?

  1. Theory of Relativity

  2. Quantum Theory

  3. Electromagnetism

  4. Solid-State Physics
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The development of the laser was made possible by advancements in quantum theory and the understanding of stimulated emission.

Multiple choice

Who developed TM?

  1. Maharishi Mahesh Yogi

  2. Carl Jung

  3. Abraham Maslow

  4. Ken Wilber
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

TM was developed by Maharishi Mahesh Yogi, a spiritual leader and guru.

Multiple choice

Who is credited with developing the first mechanical computer?

  1. Charles Babbage

  2. Ada Lovelace

  3. Alan Turing

  4. John Atanasoff
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Charles Babbage, an English mathematician and inventor, is widely recognized as the father of the computer for his work on the Analytical Engine, a mechanical general-purpose computer.

Multiple choice

Who is known as the 'father of the modern computer'?

  1. John von Neumann

  2. Alan Turing

  3. Charles Babbage

  4. Steve Jobs
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

John von Neumann, a Hungarian-American mathematician and physicist, is often referred to as the 'father of the modern computer' for his contributions to computer architecture and the development of the stored-program concept.

Multiple choice

Who discovered the electron?

  1. J.J. Thomson

  2. James Clerk Maxwell

  3. Michael Faraday

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

J.J. Thomson, a British physicist, discovered the electron in 1897.

Multiple choice

Who discovered the structure 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 DNA in 1953, based on the X-ray crystallography data obtained by Rosalind Franklin and Maurice Wilkins.

Multiple choice

Who discovered the periodic table of elements?

  1. Dmitri Mendeleev

  2. John Newlands

  3. Antoine Lavoisier

  4. Henry Moseley
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dmitri Mendeleev, a Russian chemist, developed the periodic table of elements in the 19th century.

Multiple choice

Who discovered the nucleus of an atom?

  1. Ernest Rutherford

  2. Niels Bohr

  3. James Chadwick

  4. Otto Hahn
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ernest Rutherford, a New Zealand-born physicist, discovered the nucleus of an atom in 1911.

Multiple choice

Who discovered the structure of benzene?

  1. Friedrich Kekule

  2. August Kekule

  3. James Dewar

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

Friedrich Kekule, a German chemist, proposed the hexagonal structure of benzene in 1865.

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

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.