General Awareness · Science General

Inventors and Scientific Discoveries

4,454 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 general knowledge
  1. Charles Darwin

  2. Charles Dickens

  3. Chetan Bhagat

  4. C Rajgopalachari

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

'The Power of Movement in Plants' is Charles Darwin's 1880 work studying plant behaviors including phototropism (movement toward light) and gravitropism (response to gravity). It represented his continued investigation of evolutionary principles in plant biology. Neither Dickens, Bhagat, nor Rajagopalachari authored this botanical work.

Multiple choice general knowledge
  1. Charles Darwin

  2. Charles Dickens

  3. Chetan Bhagat

  4. C Rajgopalachari

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

This appears to be a duplicate question of block 75844, testing the same knowledge about Darwin's botanical work. 'The Power of Movement in Plants' studies how plants respond to environmental stimuli like light and gravity. The question structure is identical to the previous one.

Multiple choice general knowledge
  1. Charles Darwin

  2. Charles Dickens

  3. Chetan Bhagat

  4. C Rajgopalachari

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

'The Formation of Vegetable Mould Through the Action of Worms' is Charles Darwin's 1881 book on earthworms and their role in soil formation and fertility. It demonstrated how worms aerate and enrich soil through their digestive processes. This work exemplified Darwin's interest in smaller-scale natural phenomena.

Multiple choice general knowledge science & technology
  1. Dmitri Mendeleev

  2. Dmitri Mendeleev and Lothar Meyer

  3. Albert Einstein

  4. Sir Issac Newton

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

While Dmitri Mendeleev is most commonly credited, both he and Lothar Meyer independently developed similar periodic table concepts around 1869-1870. Mendeleev's version was more predictive as he left gaps for undiscovered elements and even predicted their properties accurately. Both scientists arrived at the periodic arrangement simultaneously.

Multiple choice general knowledge science & technology
  1. Aristotle

  2. Lamarack

  3. Theophrastus

  4. Robert Hook

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

Lamarck coined the term 'biology' in 1802, along with Treviranus. The claimed answer (B) is correct. Aristotle is considered the father of zoology, Theophrastus is the father of botany, and Robert Hooke coined the term 'cell'.

Multiple choice general knowledge science & technology
  1. Robert hook

  2. Johan Mendel

  3. Aristotle

  4. Ehrenberg

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

Robert Hooke coined the term 'cell' in 1665 after observing cork under a microscope. The claimed answer (A) is correct. Aristotle, Johann Mendel, and Ehrenberg did not coin the term.

Multiple choice general knowledge science & technology
  1. Charles Robert Darwin

  2. Clak Robert Darwin

  3. Chelms Robert Darwin

  4. Robert Charles Darwin

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

Charles Robert Darwin proposed the theory of natural selection in his work 'On the Origin of Species' (1859). Natural selection explains how organisms with favorable traits are more likely to survive and reproduce. Options B, C, D have garbled variations of his name but are incorrect spellings.

Multiple choice general knowledge
  1. Isaac Newton

  2. Stephen Hawkings

  3. Thomas Elva Edison

  4. Albert Einstien

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

E=mc² is Einstein's mass-energy equivalence formula from his 1905 paper on special relativity. Neither Newton (classical mechanics), Hawking (black holes), nor Edison (inventions) discovered this relationship between energy, mass, and the speed of light.

Multiple choice general knowledge
  1. Charles Johnson

  2. Thomas Edison

  3. Alexander Graham Bell

  4. Earle Dickson

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

Earle Dickson invented the Band-Aid in 1920 while working as a cotton buyer for Johnson & Johnson. He created the prototype for his wife Josephine, who frequently cut herself while cooking. Johnson & Johnson began marketing Band-Aids commercially in 1924, and the product revolutionized minor wound care. The name 'Band-Aid' eventually became a generic trademark for adhesive bandages.

Multiple choice general knowledge
  1. Hedy Lamar

  2. Bette Nesmith Graham

  3. Benjamin Franklin

  4. Dean Kamen

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

Bette Nesmith Graham invented Liquid Paper (white-out) in 1951 while working as a secretary. She created the correction fluid using tempera paint to cover typing mistakes, and initially called it 'Mistake Out.' Her son Michael Nesmith later became famous as a member of The Monkees rock band. The product revolutionized office work and was eventually sold to Gillette for $47.5 million in 1979.

Multiple choice general knowledge
  1. Board game

  2. Playing cards

  3. Jigsaw puzzle

  4. Greeting card

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

John Spilsbury, a British cartographer, invented the jigsaw puzzle in the 1760s as an educational tool to teach geography. He mounted maps on wooden boards and cut them along country boundaries.

Multiple choice general knowledge science & technology
  1. His theory of special relativity

  2. His amazing hair

  3. His discovery of the law of the photo electric effect

  4. He didn't win a prize

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

Albert Einstein won the Nobel Prize in Physics in 1921 for his discovery of the law of the photoelectric effect, not for relativity theory which was already well-established. Option A (special relativity) is a common misconception - relativity was too controversial and theoretical at the time. Option B is humorous trivia about his appearance, not a scientific achievement.

Multiple choice general knowledge history
  1. Penicillin

  2. Tutankhamen's Tomb

  3. X-rays

  4. Vitamin D

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

Howard Carter, a British archaeologist, discovered the intact tomb of the pharaoh Tutankhamun in Egypt's Valley of the Kings in November 1922. This was one of the most significant archaeological discoveries of the 20th century, revealing a wealth of artifacts from ancient Egypt that had remained undisturbed for over 3,000 years.

Multiple choice general knowledge science & technology
  1. His theory of special relativity

  2. His amazing hair

  3. His discovery of the law of the photo electric effect

  4. He didn't win a prize

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

The correct answer is C because Albert Einstein won the 1921 Nobel Prize in Physics specifically for his discovery of the law of the photoelectric effect, not for his theories of relativity (option A). Einstein's remarkable hair (option B) is not a scientific achievement, and he did win a Nobel Prize (option D is false).

Multiple choice general knowledge science & technology
  1. Bill Gates

  2. Douglas Englebart

  3. John Mauchly

  4. Robert Noyce

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

The correct answer is B because Douglas Engelbart invented the computer mouse in 1964 at Stanford Research Institute. Bill Gates (A) co-founded Microsoft, John Mauchly (C) co-developed ENIAC, and Robert Noyce (D) co-founded Intel.