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.

Famous inventionsNobel Prize winnersScientific conceptsKey inventors

Inventors and Scientific Discoveries Questions

Multiple choice
  1. Charles Kao,Willard Boyle and George Smith

  2. Elizabeth Blackburn,Jack Szostak and Carol Greider

  3. Venkatraman Ramakrishnan, Thomas Steitz and Ada Yonath

  4. Elinor Ostrom and Oliver Williamson

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

The 2009 Nobel Prize in Physics was awarded to Charles Kao for fiber optics research, and Willard Boyle and George Smith for inventing the CCD sensor. Kao's work revolutionized telecommunications through fiber-optic communications, while Boyle and Smith's imaging technology transformed digital photography and astronomy. Option B refers to Medicine, C to Chemistry, and D to Economics.

Multiple choice
  1. Charles Kao,Willard Boyle and George Smith

  2. Elizabeth Blackburn,Jack Szostak and Carol Greider

  3. Venkatraman Ramakrishnan, Thomas Steitz and Ada Yonath

  4. Elinor Ostrom and Oliver Williamson

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

The 2009 Nobel Prize in Chemistry was awarded to Venkatraman Ramakrishnan, Thomas Steitz, and Ada Yonath for their groundbreaking work on ribosome structure and function. They mapped the atomic structure of the ribosome, the cellular machinery that reads genetic instructions to build proteins - fundamental to understanding life at the molecular level. Kao/Boyle/Smith won Physics, Blackburn won Medicine, and Ostrom won Economics.

Multiple choice
  1. Charles Kao,Willard Boyle and George Smith

  2. Elizabeth Blackburn,Jack Szostak and Carol Greider

  3. Venkatraman Ramakrishnan, Thomas Steitz and Ada Yonath

  4. Elinor Ostrom and Oliver Williamson

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

The 2009 Nobel Prize in Medicine was awarded to Elizabeth Blackburn, Jack Szostak, and Carol Greider for discovering how chromosomes are protected by telomeres and the enzyme telomerase. Their work revealed fundamental mechanisms of cellular aging and genetic stability, with implications for cancer and age-related diseases. Kao/Boyle/Smith won Physics, Ramakrishnan won Chemistry, and Ostrom won Economics.

Multiple choice
  1. Physics

  2. Economics

  3. Medicine

  4. Chemistry

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

Peter Agre (note correct spelling) shared the 2003 Nobel Prize in Chemistry with Roderick MacKinnon. Agre was recognized for his discovery of aquaporins - water channel proteins in cell membranes. The Physics and Economics prizes that year went to different researchers. The question has a spelling error in the name.

Multiple choice
  1. Fleming

  2. Becquerel

  3. J. J. Thomson

  4. Chadwick

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

James Chadwick discovered the neutron in 1932, confirming the existence of this neutral subatomic particle. Fleming discovered penicillin, Becquerel discovered radioactivity, and J.J. Thomson discovered the electron.

Multiple choice
  1. Libby

  2. Marie Curie

  3. P. Curie

  4. None of these

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

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

Multiple choice
  1. Marconi

  2. J.L Baird

  3. Wright Brother

  4. None of these

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

John Logie Baird is credited with inventing the first practical television system in the 1920s. He demonstrated the first working television and was a pioneer in the development of television technology.

Multiple choice
  1. Henry

  2. Toliat

  3. James watt

  4. Bush well

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

James Watt made crucial improvements to the steam engine design in the late 18th century, dramatically improving efficiency and making it practical for industrial use. While Thomas Newcomen built an earlier steam engine, Watt's innovations (separate condenser, parallel motion) are why he's commonly credited in popular knowledge.

Multiple choice
  1. Alexander Fleming

  2. Louis Pasteur

  3. C.V Raman

  4. None of these

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

Alexander Fleming discovered penicillin in 1928 when he noticed that mold (Penicillium notatum) had antibacterial properties. This accidental discovery at St. Mary's Hospital in London revolutionized medicine and earned Fleming the Nobel Prize. Louis Pasteur contributed to germ theory and pasteurization, while C.V. Raman worked in physics.

Multiple choice
  1. Robert Hooke

  2. Robert Brown

  3. Durjarden

  4. Purkinje

  5. Bowman

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

Durjarden used the term ‘sarcode’ for the cellular fluid, which was later on, named as “Protoplasm” by Purkinje and Von Mohl.