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.

409
Total Questions

Practice Questions

Page 9 of 21
Question #161
Who invented the first practical electronic synthesizer instrument, altering modern music composition?
A. Leo Fender
B. Robert Moog
C. Laurens Hammond
D. Thomas Edison
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option B

Explanation:
Robert Moog invented the Moog synthesizer in the 1960s, introducing voltage-controlled modular electronic instrumentation.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #162
The modern concept of the chemical bond via shared pairs of electrons (covalent bond) was discovered by whom?
A. John Dalton
B. Gilbert N. Lewis
C. Svante Arrhenius
D. Linus Pauling
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option B

Explanation:
Gilbert N. Lewis introduced electron-dot structures and developed the electronic theory of chemical bonding in 1916.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #163
Who discovered the first known antibiotic substance produced by soil actinomycetes, Actinomycin?
A. Selman Waksman
B. Robert Koch
C. Alexander Fleming
D. Louis Pasteur
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option A

Explanation:
Selman Waksman and his student H. Boyd Woodruff isolated actinomycin in 1940, sparking targeted soil microbe screening programs.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #164
The invention of the safety razor with disposable stamped steel blades was introduced by whom?
A. John Loud
B. Walter Hunt
C. King Camp Gillette
D. Elisha Otis
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option C

Explanation:
King Camp Gillette patented the safety razor system with cheap, replaceable double-edged blades in 1904.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #165
Who discovered that the velocity of sound in a gas depends directly on the ratio of specific heats?
A. Pierre-Simon Laplace
B. Christiaan Huygens
C. Isaac Newton
D. Robert Boyle
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option A

Explanation:
Laplace corrected Newton's isothermal calculation of sound speed by incorporating adiabatic heating/cooling factors.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #166
The invention of the wind tunnel for testing aerodynamic structures was first successfully built by whom?
A. Gustave Eiffel
B. Wright Brothers
C. Francis Herbert Wenham
D. Otto Lilienthal
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option C

Explanation:
Francis Herbert Wenham designed and operated the first enclosed operational wind tunnel in 1871 for the Aeronautical Society of Great Britain.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #167
Who discovered that electrical currents travel along the exterior surface of a conductor rather than uniformly through its core?
A. Michael Faraday
B. Nikola Tesla
C. James Clerk Maxwell
D. Heinrich Hertz
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option A

Explanation:
Michael Faraday discovered the skin effect and structural shielding principles, leading to the creation of the Faraday Cage.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #168
The first practical high-pressure steam engine was constructed by which mechanical pioneer?
A. Thomas Newcomen
B. George Stephenson
C. James Watt
D. Richard Trevithick
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option D

Explanation:
Richard Trevithick built high-pressure industrial engines capable of generating high power outputs from lightweight boilers.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #169
Who discovered the law of thermal radiation stating that emissivity equals absorptivity at thermal equilibrium?
A. Max Planck
B. Wilhelm Wien
C. Gustav Kirchhoff
D. Josef Stefan
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option C

Explanation:
Gustav Kirchhoff formulated Kirchhoff's Law of Thermal Radiation in 1859, standardizing spectroscopy and thermodynamic modeling.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #170
The invention of the flash memory architecture, ubiquitous in USB drives and SSDs, was developed by whom?
A. Fujio Masuoka
B. Tim Berners-Lee
C. Douglas Engelbart
D. Alan Turing
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option A

Explanation:
Fujio Masuoka invented both NOR and NAND flash memory while working at Toshiba in the 1980s.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #171
Who discovered the planet Ceres, the first recognized asteroid, in 1801?
A. Johannes Kepler
B. William Herschel
C. Giuseppe Piazzi
D. Heinrich Olbers
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option C

Explanation:
Italian astronomer Giuseppe Piazzi discovered Ceres on January 1, 1801, initially cataloging it as a new comet or planet.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #172
Who invented the modern zipper mechanism with interlocking teeth in its final commercial form?
A. Gideon Sundback
B. Walter Hunt
C. Elias Howe
D. Whitcomb Judson
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option A

Explanation:
Gideon Sundback modified earlier primitive clasp locker designs into the modern 'Hookless Fastener' or zipper in 1913.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #173
The discovery of the restriction enzymes, which slice DNA at specific sequences, revolutionized genetic engineering under which scientist?
A. Kary Mullis
B. Paul Berg
C. James Watson and Francis Crick
D. Werner Arber, Hamilton Smith, and Daniel Nathans
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option D

Explanation:
These three scientists received the 1978 Nobel Prize for discovering restriction endonucleases and applying them to molecular genetics.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #174
Who invented the first practical electronic calculator utilizing a microprocessor chip?
A. Charles Babbage
B. John von Neumann
C. Busicom team and Intel (Masatoshi Shima, Ted Hoff)
D. Alan Turing
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option C

Explanation:
The partnership between Busicom and Intel led to the invention of the Intel 4004, the first commercial programmable microprocessor.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #175
Who discovered the fundamental principle of superconduction in metals at temperatures near absolute zero?
A. Lord Kelvin
B. Johannes Diderik van der Waals
C. Max Planck
D. Heike Kamerlingh Onnes
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option D

Explanation:
Heike Kamerlingh Onnes discovered superconductivity in solid mercury cooled to 4.2 Kelvin using liquid helium in 1911.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #176
The invention of the common matchstick containing phosphorus triggered by friction was developed by whom?
A. Robert Boyle
B. Antoine Lavoisier
C. John Walker
D. Humphry Davy
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option C

Explanation:
English chemist John Walker invented the first friction match in 1826 by coating cardboard or wooden splints with sulfide pastes.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #177
Who discovered the optical law of refraction independently, which relates the angles of incidence and refraction?
A. Christiaan Huygens
B. Willebrord Snellius
C. Isaac Newton
D. René Descartes
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option B

Explanation:
Willebrord Snellius formulated the law of refraction (Snell's Law) in 1621, determining refractive index constants.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #178
Who invented the acoustic phonograph, capturing audio playback on tin foil cylinders?
A. Emile Berliner
B. Nikola Tesla
C. Thomas Edison
D. Alexander Graham Bell
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option C

Explanation:
Thomas Alva Edison invented the phonograph in 1877, capturing acoustic sound waves mechanically via steel needles onto soft foils.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #179
The invention of the modern mechanical wristwatch was popularized for military utility by which brand/designer?
A. Abraham-Louis Breguet
B. Louis Cartier
C. John Harrison
D. Patek Philippe
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option B

Explanation:
Louis Cartier created the Santos wristwatch in 1904 for pilot Alberto Santos-Dumont, popularizing men's portable wrist watches over pocket variants.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #180
Who discovered that light exhibits particle-like momentum in scattering collisions with electrons, proving photon theory?
A. Niels Bohr
B. Arthur Compton
C. Max Planck
D. Albert Einstein
Discuss
Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option B

Explanation:
Arthur Compton discovered the Compton Effect in 1923, providing explicit proof that light acts as discrete localized particles.
This question belongs to: Static General Knowledge Inventions and Discoveries

More Static General Knowledge Topics

Awards and Honours MCQs
Books and Authors MCQs
Capitals and Currencies MCQs
Classical Dances of India MCQs
First in India MCQs
First in the World MCQs
Folk Dances of India MCQs
Important Days MCQs
Important Monuments of India MCQs
International Organizations MCQs
National Parks and Wildlife Sanctuaries of India MCQs
Science and Technology MCQs
Today's Top Topics
States and Capitals of India 256 Capitals and Currencies 379 International Organizations 387 Important Monuments of India 477 Science and Technology 466
Explore Subjects
Reasoning 2064 Geography GK 6121 Economy GK 2220 Accountancy and Statistics 3179 Science 4430
Practice Mix
Find the odd one out: 8, 27, 64, 100, 125, 216, 343
___ tea is grown in Darjeeling.
What will come in place of the question mark (?) in the following letter series? WY, AC, EG, IK, ?
______ you come with me depends on your mood.
Which of the following is a feature of monopolistic competition?