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 organisation of commerce and management structure of business e-tailing e-advertising, e-marketing and e-security e-commerce and mobile commerce

The ______ (MIT) was the first to demonstrate the use of the first email system, known as MAILBOX.

  1. Morocco Institute of Technology

  2. Massachusetts Institute of Technology

  3. Manhattan Institute of Technology

  4. Melbourne Institute of Technology
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Massachusetts Institute of Technology is a private research university located in Cambridge, United States. In 1965, MIT was the first to demonstrate the use of a first email system, known as Mailbox.

Multiple choice organisation of commerce and management structure of business e-tailing e-advertising, e-marketing and e-security e-commerce and mobile commerce

What began as an _______ experiment in computer communication technology during the cold war has revolutionized the world.

  1. American

  2. German

  3. Indian

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

Invention of internet has brought a revolution in the world. It started as an experiment in MIT Cambridge, in computer communication technology during the cold war. Now, it has become an important part of our lives, as we are very much dependent on Internet.

Multiple choice bio-chemistry caskets of life animal cells vs plant cells comparing plant and animal cells comparison between animal and plant cell

The term 'sarcode' for protoplasm was coined by

  1. Dujardin

  2. Hugo Von Mohl

  3. Fontana

  4. F. Meischer
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Leeuwenhoek was the first to see free living cells. He observed bacteria, protozoa, red blood cells, sperms etc. under his microscope. In 1809, Lamarck concluded that all living beings are formed of cells. Living substance was first observed by Corti in 1772 and was named sarcode by Dujardin in 1835.
So, the correct answer is 'Dujardin'.
Multiple choice bio-chemistry caskets of life animal cells vs plant cells comparing plant and animal cells comparison between animal and plant cell

'Protoplasm is the physical basis of life' was suggested by

  1. Purkinje

  2. Huxley

  3. Sidney Fox

  4. Hugo Von Mohl
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Protoplasm or living matter is a polyphasic crystallo-colloidal complex that possesses all the properties of life and is found inside living cells. It was called as sarcode by Dujardin in 1835. The term protoplasm was coined by Purkinje in 1839. Huxley in 1868, has called it as physical basis of life because all the properties of life reside in the protoplasm.
So, the correct answer is 'Huxley'.
Multiple choice chemistry materials liquid crystals liquid state the liquid state

The best evidence for the existence and movement of particles in liquids was provided by ______________.

  1. John Dalton

  2. Thomas Edison

  3. J.J. Thomson

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

Robert brown observed a weak solution of milk and later pollen grains in suspension with a high-powered microscope, and saw that the particles of milk and the pollen grains showed a violent and random motion. This motion was named as Browninan motion.

Multiple choice social studies print culture and the modern world film and print media evolution of writing and communication system great reformers and reform movements

Paper was invented in China about 1900 years ago, by a man named _______.

  1. Fa- Hieun

  2. Cai Lun.

  3. Jack Ma

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

Cai Lun is regarded as the inventor of paper and the papermaking process in 105 AD. He created a sheet of paper using mulberry and other bast fibres along with fishnets, old rags, and hemp waste. He took paper beyond being a technical invention and helped drive its widespread adoption such that it became a successful innovation.

Multiple choice commercial applications sales and selling process distinction between marketing and sales meaning, elements and factors influencing marketing mix evolution of marketing

The classification of Four P's was popularized by _______.

  1. Neil H. Borden

  2. E. Jerome McCarthy

  3. Kotler

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

While Neil H. Borden coined the term marketing mix, E. Jerome McCarthy is credited with popularizing the 4Ps classification in his book Basic Marketing: A Managerial Approach.

Multiple choice biology biodiversity and its classifications life introduction to plant kingdom classification of organisms

The term Classification was coined by

  1. Theophrastus

  2. A.P.de candolle

  3. Aristotle

  4. Linnaeus
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • The classification term was coined by 'Theophrastus'.
  • The term taxonomy was coined by A. P. de Candolle.
  • Aristotle divided animals into two groups based on whether they have red blood or not.
  • Linnaeus proposed a binomial system of nomenclature.
  • So, the correct option is 'Theophrastus'.
Multiple choice biology biodiversity and classification life introduction to plant kingdom classification of organisms

Systema Naturae was written by  __________.

  1. Lamarck

  2. Cuvier

  3. Aristotle

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

In the year 1735, when Linnaeus lived in the Netherlands, he published a book named Systema Naturae. In this book he presented a new classification for the three kingdoms in nature: the animal kingdom, the plant kingdom and the kingdom of stones.

Multiple choice biology biodiversity and classification life introduction to plant kingdom classification of organisms

The botanist who introduced binomial system of classification is 

  1. Carolus Linnaeus

  2. Gaspard Bauhin

  3. Sir Joseph Dalton Hooker

  4. Adolf Engler
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Binomial nomenclature is the system of nomenclature in which each species of animal or plant receives a name of two terms of which the first identifies the genus to which it belongs and the second the species itself. 
  • The genus is capitalized and species is in lowercase, both written in italics. The formal system of nomenclature was introduced by Swedish natural scientist Carl Linnaeus in his book Species Plantarum in 1753.
    Thus the correct answer is option A.
Multiple choice biology biodiversity and classification life introduction to plant kingdom classification of organisms

Linnaeus is known as

  1. Father of cytology

  2. Father of taxonomy

  3. Father of binomial nomenclature

  4. Both B and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Taxonomy is the part of science that focuses on naming and classifying or grouping organisms. Carolus Linnaeus is considered the 'Father of Taxonomy' because, in the 1700s, he developed a way to name(binomial nomenclature) and organize species that we still use today.
  • Binomial nomenclature is a  system of naming each type of organism, consisting of the two-part scientific name that is unique for each species; the first word identifies the genus of the organism and the second word signifies the species. Linnaeus introduced the binomial system of nomenclature hence considered as the father of binomial nomenclature.
  • So, Linnaeus is known as 'Both B and C'.
Multiple choice biology biodiversity and classification life introduction to plant kingdom classification of organisms

The internationally recognised binomial nomenclature was developed by Linnaeus in his book.

  1. Philosophia Botanica

  2. Historia Plantarum

  3. Species Plantarum

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

Binomial nomenclature was given by Carolus Linnaeus in 1757 in Book Philosophia Botanica. This system provides a name which has two components - the Generic name and the specific epithet.

So the correct option is "Philosophia Botanica".

Multiple choice biology biodiversity and classification life introduction to plant kingdom classification of organisms

Who gave the nomenclature according to which humans are called Homo sapiens

  1. Darwin

  2. Mendel

  3. Aristotle

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

Carlolus Linnaeus is well known for his work in binomial nomenclature. Binomial nomenclature is a naming system for the classification of species. In this, organism is given a scientific name. For example, the scientific name of human is Homo sapiens. In this, Homo is genus which includes early and modern humans and sapiens is species specific for humans

So, the correct answer is 'Linnaeus'

Multiple choice biology biodiversity and classification life introduction to plant kingdom classification of organisms

Morphospecies concept was proposed by 

  1. Darwin

  2. John Ray

  3. Linnaeus

  4. Both B and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • Both John Ray and Linnaeus proposed Morphospecies concept.
  • Morphological Species Concept characterizes a species by body shape and other structural features and is applied to asexual and sexual organisms. It differs from the modern concept of species where a group of organisms capable of interbreeding and producing fertile offspring are said to belonging to same species. 
  • Darwin proposed the theory of biological evolution.
So, the correct option is 'Both B and C'

Multiple choice biology plant taxonomy classification of kingdom plantae features of plant and animal kingdom plant classification

The book 'Structure and Reproduction of the Algae' describing taxonomy of algae is written by 

  1. Whittaker

  2. Fritsch

  3. Trainer

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

The book 'Structure and Reproduction of the Algae' describing taxonomy of algae is written by Felix Eugen Fritsch FRS. He was a British biologist. He gave very comprehensive and authoritative account of classification of algae based on a variety of characters as pigmentation, stored food matter, habit, habitat and method of reproduction.