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

Who named the charges as negative and positive?

  1. William Gilbert

  2. Sir Issac Newton

  3. Benjamin Franklin

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

Yes, he observed the charges on a glass rod and ebonite rod and named them positive charge and negative charge respectively.

Multiple choice

Which of the following statements is incorrect?

  1. Robert Brown discovered the cell.

  2. Cell doctarine was a combined view of Schwann and Schleiden.

  3. Antony Von Leeuwenhoek gave the term 'little animalcules' to microorganisms.

  4. Knoll and Ruska invented the microscope.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Robert Hooke discovered the cell whereas Robert Brown discovered the nucleus.

Multiple choice

Who invented Stethoscope?

  1. Laennnec

  2. M Lammond

  3. Zoll

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

Rene Laennec invented the stethoscope in 1816. He created it to examine patients without placing his ear directly on their chest. Other options are not associated with stethoscope invention.

Multiple choice

Peroxisomes were discovered by

  1. Christian De Duve

  2. Robert Hooke

  3. Carl Benda

  4. George Palade

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

 Christian De Duve discovered peroxisomes in addition to lysosomes.

Multiple choice

Name the Dutch Economist who won the nobel Prize for Economics?

  1. Jan Tinbergen

  2. Robert F Engle

  3. Robert A Mundell

  4. Martin Evans
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Jan Tinbergen, a Dutch economist, was the first-ever recipient of the Nobel Prize in Economics in 1969, sharing it with Ragnar Frisch. Robert F. Engle (2003), Robert A. Mundell (1999), and the misspelled 'Martin Evans' (likely meant to be James E. Meade or another laureate) won their prizes much later.

Multiple choice

“Taxonomy without phylogeny is similar to bones without flesh” is the statement of

  1. Oswald Tippo

  2. John Hutchinson

  3. Takhtajan

  4. Bentham and Hooker
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The 'Takhtajan System' of flowering plant classification (Armen Takhtajan, 1997, Diversity and Classification of Flowering Plants) treats flowering plants as a division or phylum (Magnoliophyta) with two classes (monocots and dicots) which are organised into subclasses.