General Awareness ยท 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

The first mechanical calculating machine was made by

  1. William oughtred

  2. Gottfried Leibnitz

  3. Blaise Pascal

  4. Charles Babbage

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Blaise Pascal is credited with inventing the Pascaline, the first mechanical calculator, in 1642. Other figures like Babbage and Leibnitz contributed significantly to later computing developments.

Multiple choice

Who invented aeroplane?

  1. Wright brothers

  2. James Watt

  3. Maxwell

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Orville and Wilbur Wright, known as the Wright brothers, are credited with inventing and building the world's first successful airplane.

Multiple choice

Telescope was invented by

  1. Newton

  2. James Watt

  3. Galileo

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

While Hans Lippershey is often credited with the first patent, Galileo Galilei is famous for significantly improving the telescope and being the first to use it for systematic astronomical observations.

Multiple choice

Pocket radio sets became possible due to

  1. vaccum tubes

  2. invention of transistors

  3. radio stations

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The invention of the transistor allowed for the miniaturization of electronic circuits, replacing bulky vacuum tubes and making portable devices like pocket radios possible.

Multiple choice

Neutron was discovered by

  1. Moseley

  2. Rutherford

  3. Thomson

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

James Chadwick discovered the neutron in 1932, which earned him the Nobel Prize in Physics.

Multiple choice

The scientist who received Nobel Prize in Physics twice was

  1. Albert Einstein

  2. Marie Curie

  3. John Bardeen

  4. Enrico Fermi
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

John Bardeen is the only person to have won the Nobel Prize in Physics twice: once for the invention of the transistor (1956) and once for the theory of superconductivity (1972).

Multiple choice

Barometer was invented by

  1. J.L. Baird

  2. W. Roentgen

  3. Torricelli

  4. Thomas Barrow
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Evangelista Torricelli, an Italian physicist and mathematician, invented the barometer in 1643.

Multiple choice

Hargobind Khurana is credited for the discovery of

  1. synthesis of proteins

  2. synthesis of genes

  3. synthesis of nitrogenous bases

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Har Gobind Khorana shared the 1968 Nobel Prize in Physiology or Medicine for his work on the genetic code and the synthesis of genes.