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 general knowledge science & technology
  1. Albert Einstein

  2. Alfred Nobel

  3. Adolf Nobel

  4. Alexender Grahambell

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

Alfred Nobel, the Swedish chemist who invented dynamite, established the Nobel Prizes through his 1895 will. His fortune funds the awards in Physics, Chemistry, Medicine, Literature, Peace, and later Economics. Option C Adolf Nobel appears to be a distractor mixing Alfred's name with Hitler.

Multiple choice general knowledge science & technology
  1. James Farraday

  2. Archimedes

  3. Sir Isaac Newton

  4. Albert Einstein

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

Archimedes discovered the Principle of Buoyancy, which states that an object submerged in a fluid experiences an upward force equal to the weight of the fluid displaced. This principle explains why ships float and is fundamental to fluid mechanics and hydrostatics.

Multiple choice general knowledge science & technology
  1. Lebinitz

  2. Pascal

  3. Pingala

  4. Newton

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

Pingala, an ancient Indian scholar (c. 3rd century BCE), in his work Chandaḥśāstra, used binomial coefficients for analyzing meters in Sanskrit poetry. His work on combinations and permutations predated Pascal by over a millennium.

Multiple choice general knowledge science & technology
  1. Gottfried Leibnitz

  2. Pingala.

  3. Aryabhata

  4. Laplace

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

Pingala (c. 3rd century BCE) used binary numbers (long and short syllables) in his Chandaḥśāstra to represent and classify poetic meters. His system represents the earliest known description of a binary numeral system.

Multiple choice general knowledge science & technology
  1. Taylor and Maclaurin

  2. Issac Newton

  3. Fermi

  4. Madhava of Sangamagrama

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

Madhava of Sangamagrama (c. 1340-1425), an Indian mathematician-astronomer from the Kerala school, discovered the infinite series expansions that later became known as Taylor and Maclaurin series - centuries before Taylor (1685-1731) and Maclaurin (1698-1746).

Multiple choice general knowledge science & technology
  1. Sushruta

  2. Alexander Fleming

  3. Mary Bellis

  4. Upendra Nath Brahmachari

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

Sushruta, an ancient Indian physician from around 600 BCE, described cataract surgery (called 'couching') in his treatise 'Sushruta Samhita' - one of the foundational texts of Ayurveda and surgery.

Multiple choice general knowledge science & technology
  1. C V Raman

  2. Albert Einstine

  3. Subrata Mitra

  4. Marie Curie

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

Subrata Mitra, the Indian cinematographer, invented 'bounce lighting' while working on Satyajit Ray's 'Pather Panchali' (1955). He used painted reflectors to bounce natural light, creating soft, natural lighting effects - a revolutionary technique.

Multiple choice general knowledge science & technology
  1. Ananda Mohan Chakrabarty

  2. Shakyamuni Buddha,

  3. Narinder Singh Kapany

  4. Homi Jahangir Bhabha

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

Narinder Singh Kapany is widely recognized as the father of fiber optics for his pioneering work in the 1950s on fiber transmission. Ananda Mohan Chakrabarty is known for genetic engineering (oil-eating bacteria), Homi Bhabha for nuclear physics, and Buddha is irrelevant to this invention.

Multiple choice general knowledge science & technology
  1. James Trulli

  2. Fermi

  3. Sake Dean Mahomed.

  4. Ananda Mohan Chakrabarty

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

Ananda Mohan Chakrabarty developed genetically engineered Pseudomonas bacteria capable of breaking down crude oil (1979), used for oil spill cleanup. James Trulli is fictional, Fermi is a nuclear physicist, and Sake Dean Mahomed is known for shampoo, not bioremediation.

Multiple choice general knowledge science & technology
  1. Alexander fleming

  2. Charaka Samhita

  3. Sushruta

  4. Sake Dean Mahomed.

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

Sake Dean Mahomed, an Indian entrepreneur, introduced shampoo to the Western world in the early 19th century (circa 1814). Alexander Fleming discovered penicillin, Charaka and Sushruta are ancient Ayurvedic physicians, not shampoo inventors.

Multiple choice general knowledge history
  1. Marie Curie

  2. Gertrude Belle Elion

  3. Jane Goodall

  4. Elisabeth Kubler-Ross

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

Marie Curie is the only person to have won Nobel Prizes in two different scientific fields - Physics in 1903 for work on radiation phenomena, and Chemistry in 1911 for the discovery of radium and polonium. The other scientists listed are accomplished but did not achieve this unique distinction.

Multiple choice general knowledge science & technology
  1. Measurement Error

  2. Continuous Measurements

  3. Noise

  4. Iteration

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

Noise became the indispensable component in system theory to account for behaviors that linear deterministic theories and measurement errors couldn't explain before 1900. Noise represents random fluctuations and uncertainties inherent in real-world systems, making it fundamental to complete systemic studies.

Multiple choice general knowledge
  1. Einstein

  2. Newton

  3. Galileo

  4. Faraday

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

Galileo Galilei invented an early form of thermometer called the thermoscope in the early 1600s. Einstein and Faraday lived centuries later, and while Newton was a contemporary, he did not invent the thermometer. The year 1607 is close to the actual timeline of Galileo's work.