Inventions and Discoveries MCQs

Static General Knowledge

Inventions and Discoveries MCQs

Practice Inventions and Discoveries MCQs with answers and detailed explanations covering famous inventors, scientific discoveries, technological innovations, important inventions, groundbreaking research, Nobel-winning discoveries and contributions to science and technology frequently asked in SSC, Railway, Banking, UPSC, JKSSB, Police, Defence, Teaching and other competitive examinations.

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Question #21
The safety lamp for miners was invented by whom in 1815?
A. Humphry Davy
B. George Stephenson
C. Michael Faraday
D. James Watt
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Correct Answer: Option A

Explanation:
Sir Humphry Davy invented the Davy lamp, a safety lamp for use in flammable atmospheres in coal mines.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #22
Who is credited with inventing the wireless telegraph (radio communication)?
A. Alexander Graham Bell
B. Nikola Tesla
C. Heinrich Hertz
D. Guglielmo Marconi
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Correct Answer: Option D

Explanation:
Guglielmo Marconi developed the first successful long-distance wireless telegraphy system, winning the Nobel Prize in Physics in 1909.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #23
The expanding nature of the universe was discovered by which astronomer?
A. Edwin Hubble
B. Albert Einstein
C. Galileo Galilei
D. Johannes Kepler
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Correct Answer: Option A

Explanation:
Edwin Hubble discovered in 1929 that galaxies are moving away from each other, indicating that the universe is expanding.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #24
Who invented the printing press with movable type around 1440?
A. Leonardo da Vinci
B. Bi Sheng
C. William Caxton
D. Johannes Gutenberg
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Correct Answer: Option D

Explanation:
Johannes Gutenberg introduced movable-type printing to Europe, sparking the Printing Revolution.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #25
Who discovered the bacterium responsible for causing Tuberculosis (TB)?
A. Alexander Fleming
B. Robert Koch
C. Edward Jenner
D. Louis Pasteur
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Correct Answer: Option B

Explanation:
Robert Koch discovered Mycobacterium tuberculosis in 1882, establishing the germ theory of disease for TB.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #26
The first modern nuclear reactor, Chicago Pile-1, was built under the supervision of which physicist?
A. Niels Bohr
B. Enrico Fermi
C. J. Robert Oppenheimer
D. Albert Einstein
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Correct Answer: Option B

Explanation:
Enrico Fermi led the team that created the first artificial self-sustaining nuclear chain reaction in 1942.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #27
Who discovered the planet Uranus in 1781?
A. Giovanni Cassini
B. Christiaan Huygens
C. William Herschel
D. Galileo Galilei
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Correct Answer: Option C

Explanation:
William Herschel discovered Uranus using a telescope he built himself, making it the first planet discovered in modern history.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #28
The Hovercraft was invented by which British engineer?
A. Frank Whittle
B. Christopher Cockerell
C. John Logie Baird
D. James Dyson
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Correct Answer: Option B

Explanation:
Sir Christopher Cockerell invented the hovercraft (amphibious craft supported by a cushion of air) in 1956.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #29
Who is known for inventing the first commercially viable steam engine with a separate condenser?
A. Thomas Newcomen
B. Robert Fulton
C. James Watt
D. George Stephenson
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Correct Answer: Option C

Explanation:
James Watt radically improved the Newcomen steam engine by introducing a separate condenser, driving the Industrial Revolution.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #30
The concept of 'Inertia' was first formulated by which scientist before being formalized into laws by Newton?
A. Galileo Galilei
B. Aristotle
C. Johannes Kepler
D. Nicolaus Copernicus
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Correct Answer: Option A

Explanation:
Galileo Galilei developed the early concept of inertia, which Isaac Newton later refined into his First Law of Motion.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #31
Who discovered the law of buoyant force acting on a submerged object?
A. Blaise Pascal
B. Isaac Newton
C. Archimedes
D. Daniel Bernoulli
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Correct Answer: Option C

Explanation:
Archimedes of Syracuse formulated the principle of buoyancy, known as Archimedes' Principle.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #32
The laser (Light Amplification by Stimulated Emission of Radiation) was first constructed by whom in 1960?
A. Charles Townes
B. Arthur Schawlow
C. Albert Einstein
D. Theodore Maiman
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Correct Answer: Option D

Explanation:
Theodore Maiman built the first functioning laser in 1960 at Hughes Research Laboratories, using a synthetic ruby crystal.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #33
Who discovered artificial radioactivity and shared a Nobel Prize with her husband in 1935?
A. Marie Curie
B. Maria Goeppert Mayer
C. Lise Meitner
D. Irène Joliot-Curie
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Correct Answer: Option D

Explanation:
Irène Joliot-Curie (daughter of Marie Curie) and her husband Frédéric Joliot-Curie discovered artificial radioactivity.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #34
The vaccine for smallpox was developed by whom in 1796?
A. Edward Jenner
B. Louis Pasteur
C. Robert Koch
D. Alexander Fleming
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Correct Answer: Option A

Explanation:
Edward Jenner introduced the smallpox vaccine using cowpox material, pioneering the field of vaccinology.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #35
Who discovered that the planet Venus has phases similar to the Moon, supporting the heliocentric theory?
A. Tycho Brahe
B. Johannes Kepler
C. Galileo Galilei
D. Nicolaus Copernicus
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Correct Answer: Option C

Explanation:
Galileo Galilei observed the phases of Venus in 1610 using his telescope, confirming that it orbits the Sun.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #36
Who invented the first practical mechanical television system?
A. Vladimir Zworykin
B. Philo Farnsworth
C. John Logie Baird
D. Guglielmo Marconi
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Correct Answer: Option C

Explanation:
John Logie Baird demonstrated the first working mechanical television system in the 1920s.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #37
The chemical element Oxygen was independently discovered by Carl Wilhelm Scheele and which other English scientist?
A. Joseph Priestley
B. John Dalton
C. Humphry Davy
D. Henry Cavendish
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Correct Answer: Option A

Explanation:
Joseph Priestley discovered oxygen in 1774 and published his findings first, though Scheele had isolated it earlier.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #38
Who formulated the quantum theory, establishing that energy is emitted in discrete packets called quanta?
A. Max Planck
B. Werner Heisenberg
C. Louis de Broglie
D. Albert Einstein
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Correct Answer: Option A

Explanation:
Max Planck introduced quantum theory in 1900, originating Planck's constant ($h$), and won the 1918 Nobel Prize.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #39
The first modern battery, known as the voltaic pile, was invented by whom in 1800?
A. André-Marie Ampère
B. Michael Faraday
C. Luigi Galvani
D. Alessandro Volta
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Correct Answer: Option D

Explanation:
Alessandro Volta invented the first chemical battery, generating a continuous electrical current, which led to the unit 'Volt' being named after him.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #40
Who discovered the noble gas Helium in the solar spectrum before it was found on Earth?
A. William Ramsay
B. Henry Cavendish
C. Lord Rayleigh
D. Norman Lockyer and Pierre Janssen
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Correct Answer: Option D

Explanation:
French astronomer Pierre Janssen and English astronomer Norman Lockyer independently discovered helium in 1868 while analyzing solar eclipse spectra.
This question belongs to: Static General Knowledge Inventions and Discoveries

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