General Awareness ยท 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. Lamarck

  2. Mendel

  3. Charles Darwin

  4. Karl Land Steiner

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

The phrase 'survival of the fittest' is most famously associated with Charles Darwin's theory of natural selection, although it was coined by Herbert Spencer.

Multiple choice
  1. Maxwell

  2. Newton

  3. Huygens

  4. Planek

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

Christiaan Huygens proposed the wave theory of light in 1678. This contrasted with Newton's corpuscular theory of light.

Multiple choice
  1. deciphered the genes

  2. discovered the structure of DNA

  3. deciphered the genetic code

  4. None of these

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

Har Gobind Khorana shared the 1968 Nobel Prize in Physiology or Medicine for his work in deciphering the genetic code and demonstrating how the order of nucleotides in nucleic acids determines the order of amino acids in proteins.

Multiple choice
  1. R. Aravindhakakshan

  2. S. Muthukoyya

  3. R. Shivashankar

  4. J. Roy

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

Formic acid was first isolated in 1671 by the English naturalist John Ray, who distilled it from a large number of ants. The name comes from the Latin word for ant, formica.

Multiple choice
  1. Selman Walksman

  2. Louis Pasteur

  3. Babes

  4. Woodruff

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

Selman Waksman coined the term 'antibiotic' in 1947 to describe substances produced by microorganisms that inhibit other microorganisms. Note: The name is misspelled as 'Walksman' in the option - it should be 'Waksman'. Louis Pasteur discovered germ theory, Babes worked on pathogens, and Woodruff discovered antimicrobials but didn't coin the term.

Multiple choice
  1. Daniel Defo

  2. C. Young

  3. Clyde Tombaugh

  4. Robert Frost

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

Pluto was discovered on February 18, 1930, by astronomer Clyde Tombaugh at the Lowell Observatory in Flagstaff, Arizona.

Multiple choice
  1. The British Museum Library

  2. Indian Institute of Science

  3. The science of Genetics

  4. Nano Technology

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

William Bateson was a British biologist who coined the term 'genetics' and was instrumental in promoting Mendel's laws of inheritance.