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

The C Language has been developed by

  1. Charles Babbage

  2. <span style="FONT-FAMILY:" new="ar-sa=" lang="EN-US">Bjarne Stroupstrup

  3. Dennis M. Ritchie

  4. Ken Thompson
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

C language has been designed & developed by Dennis M. Ritchie at bell laboratories in 1972. It is an offspring of the “ Basic combined programming language” called 'B' developed in 1960 at Cambridge university.

Multiple choice

Who discovered hydrogen gas?

  1. Cavendish

  2. Mendel

  3. Mendeleev

  4. None of the above

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Henry Cavendish discovered hydrogen gas in 1766. He identified this element as 'inflammable air' during his experiments with acids and metals.

Multiple choice

Who among the following was the first Noble Prize winner in Physics in 1901?

  1. W. C. Roentgen

  2. H. A. L. P. Zeeman

  3. Henri Becquerel

  4. Sir J.J. Thomson
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

W.C. Roentgen was awarded the first Nobel Prize in Physics in 1901 for his discovery of X-rays in 1895. This marked the beginning of the Nobel Prize awards, making him a historically significant figure in physics.

Multiple choice

Aeroplane was invented by

  1. Wrigth brothers

  2. Alfred Nobel

  3. James Watt

  4. Hans Lippershey
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Wright brothers (Orville and Wilbur) invented and successfully flew the first powered airplane in 1903. Their pioneering work at Kitty Hawk, North Carolina, established the foundation for modern aviation.

Multiple choice

Who is the scientist behind E = mc2 equation?

  1. Einstein

  2. Newton

  3. Chadwick

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

Albert Einstein formulated the famous mass-energy equivalence equation E = mc² in 1905 as part of his Special Theory of Relativity. This equation revolutionized physics by showing that mass and energy are interchangeable.

Multiple choice

Who was behind the discovery of radium?

  1. Madam Curie

  2. Sir Isaac Newton

  3. Galileo

  4. Graham Bell
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Madam Curie (Marie Curie), along with her husband Pierre Curie, discovered radium in 1898. She was a pioneering physicist and chemist who conducted groundbreaking research on radioactivity.

Multiple choice

Television was invented by

  1. JL Baird

  2. Benjamin Franklin

  3. Graham Bell

  4. Madam Curie
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Television was invented by John Logie Baird (JL Baird), who demonstrated the first working television system in 1926. His mechanical television system was a precursor to modern electronic television.

Multiple choice

Penicillin was discovered by

  1. Edward Jenner

  2. Alexander Flemming

  3. Louis Pasteur

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

Penicillin was discovered by Alexander Fleming (note the spelling in option B has an extra 'm' but refers to the same person) in 1928 when he observed that mold prevented bacterial growth in his petri dishes. This revolutionized medicine and earned him the Nobel Prize.

Multiple choice

Which of the following did Samuel Colt invent?

  1. A.K. 47

  2. Revolver

  3. Machine gun

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

Samuel Colt invented the revolver, a repeating handgun with a rotating cylinder. The AK-47 was designed by Mikhail Kalashnikov, the machine gun by Hiram Maxim, and tanks were developed during WWI.