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 invented the typewriter?

  1. Sholes

  2. Maxwell

  3. H.Hertz

  4. J.C. Bose
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Christopher Latham Sholes is credited with inventing the first commercially successful typewriter in 1868.

Multiple choice

Who invented the lift?

  1. Otis

  2. Gargi

  3. J. Daniel

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

Elisha Otis invented the safety elevator (lift) in 1852, which prevented the car from falling if the hoisting rope broke.

Multiple choice

Who first detected the radio waves?

  1. Marconi

  2. Maxwell

  3. H.Hertz

  4. J.C. bose
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Heinrich Hertz was the first person to demonstrate the existence of electromagnetic waves (radio waves) in a laboratory setting.

Multiple choice

Who invented the motorcycle?

  1. G. Daimler of Cannstatt

  2. Percy L Spencer

  3. Sir George Cayley

  4. E.H. Armstrong
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gottlieb Daimler and Wilhelm Maybach built the first internal combustion motorcycle, the Reitwagen, in 1885.

Multiple choice

Who was awarded the Nobel Prize for peace,2010?

  1. Andre Geim

  2. Akira Suzuki

  3. Richard F. Heck

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

Nobel Peace Prize 2010 was awarded to Liu Xiaobo “for his long and non-violent struggle for fundamental human rights in China”.

Multiple choice

Match the entries in column I with those in column II and select the correct answer.

Column – I
Column – II
A. Karl Ereky 1. Coined the term gene
B. G. W. Carver 2. Father of plant tissue culture
C. Haberlandt 3. Father of agricultural biotechnology
D. Wilhelm Johannsen 4. Coined the term biotechnology

  1. A - 4, B - 2, C - 3, D - 1

  2. A - 4, B - 1, C - 2, D - 3

  3. A - 4, B - 3, C - 2, D - 1

  4. A - 3, B - 2, C - 4, D - 1

  5. A - 3, B - 4, C - 2, D - 1
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The term biotechnology was coined by Karl Ereky. George Washington Carver was a pioneer of industrial and agricultural biotechnology. He is often termed as father of agricultural biotechnology. Haberlandt was the first scientist to produce whole plants from plant tissues and so he is popularly called as the father of plant tissue Culture. Danish botanist Wilhelm Johannsen coined the term gene in 1909 to describe the fundamental physical and functional units of heredity.

Multiple choice

Who invented the loud speaker?

  1. Rice Kellogg

  2. Gatling

  3. Jansen

  4. Bertler

  5. None
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chester W. Rice and Edward W. Kellogg are credited with the invention of the modern moving-coil loudspeaker in 1925.

Multiple choice

Who proved that sulphur bacteria use Hydrogen sulphide in place of water and carbon dioxide to synthesize carbohydrates?

  1. C.B. Van Niel

  2. Nicolas De Saussure

  3. Ruben and Kamen

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

By studying green sulfur and purple sulfur bacteria he was the first scientist to demonstrate that photosynthesis is a light dependent redox reaction in which hydrogen from an oxidizable compound such as hydrogen sulphide reduces carbon dioxide to carbohydrates.

Multiple choice

Who coined the term gene?

  1. Mendel

  2. Hugo de vries

  3. Morgan

  4. Johanassen

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

He was the Danish botanist who coined the term gene.

Multiple choice

The word ecosystem was first coined by

  1. A.G Tansley

  2. V.R Misra

  3. E.P Odum

  4. Weaver & Clements
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The term 'ecosystem' was first coined by the British botanist Arthur George Tansley in 1935.