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.
Question #1
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Who discovered the phenomenon of radioactivity in 1896?
Correct Answer: Option B
Explanation:
Henri Becquerel discovered radioactivity in 1896 while working with uranium salts, for which he shared the 1903 Nobel Prize in Physics.
Henri Becquerel discovered radioactivity in 1896 while working with uranium salts, for which he shared the 1903 Nobel Prize in Physics.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
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The electron was discovered in 1897 by which of the following physicists?
Correct Answer: Option D
Explanation:
J.J. Thomson discovered the electron through his experiments with cathode ray tubes in 1897.
J.J. Thomson discovered the electron through his experiments with cathode ray tubes in 1897.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
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Who is credited with the invention of the World Wide Web (WWW) in 1989?
Correct Answer: Option C
Explanation:
Tim Berners-Lee invented the World Wide Web in 1989 while working at CERN.
Tim Berners-Lee invented the World Wide Web in 1989 while working at CERN.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #4
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The X-ray was discovered in 1895 by which Nobel laureate?
Correct Answer: Option D
Explanation:
Wilhelm Röntgen discovered X-rays in 1895 and received the first-ever Nobel Prize in Physics in 1901.
Wilhelm Röntgen discovered X-rays in 1895 and received the first-ever Nobel Prize in Physics in 1901.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #5
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Who developed the first successful polio vaccine in 1955?
Correct Answer: Option C
Explanation:
Jonas Salk developed the first successful inactivated polio vaccine (IPV) in 1955, while Albert Sabin later developed the oral polio vaccine.
Jonas Salk developed the first successful inactivated polio vaccine (IPV) in 1955, while Albert Sabin later developed the oral polio vaccine.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #6
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Alexander Fleming discovered penicillin, the world's first effective antibiotic, in which year?
Correct Answer: Option C
Explanation:
Sir Alexander Fleming discovered penicillin in 1928 at St. Mary's Hospital, London, after noticing a mold contaminating a petridish of staphylococci.
Sir Alexander Fleming discovered penicillin in 1928 at St. Mary's Hospital, London, after noticing a mold contaminating a petridish of staphylococci.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #7
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Who formulated the Laws of Planetary Motion?
Correct Answer: Option B
Explanation:
Johannes Kepler formulated the three laws of planetary motion in the early 17th century.
Johannes Kepler formulated the three laws of planetary motion in the early 17th century.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #8
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The periodic table of elements was first proposed in its widely recognized chronological form by whom?
Correct Answer: Option A
Explanation:
Dmitri Mendeleev published the first widely recognized periodic table in 1869, arranging elements by atomic mass.
Dmitri Mendeleev published the first widely recognized periodic table in 1869, arranging elements by atomic mass.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #9
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Who invented the safety elevator in 1852, which prevented the cab from falling if the cable broke?
Correct Answer: Option C
Explanation:
Elisha Otis invented the elevator safety brake in 1852, making skyscrapers practical and safe.
Elisha Otis invented the elevator safety brake in 1852, making skyscrapers practical and safe.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #10
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The blood group system (A, B, O) was discovered by which scientist?
Correct Answer: Option C
Explanation:
Karl Landsteiner discovered the ABO blood groups in 1900, for which he received the Nobel Prize in Physiology or Medicine in 1930.
Karl Landsteiner discovered the ABO blood groups in 1900, for which he received the Nobel Prize in Physiology or Medicine in 1930.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #11
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Who discovered the neutron in the year 1932?
Correct Answer: Option B
Explanation:
James Chadwick discovered the neutron in 1932, proving its existence as a neutral particle in the nucleus.
James Chadwick discovered the neutron in 1932, proving its existence as a neutral particle in the nucleus.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #12
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The invention of the dynamite is credited to which Swedish chemist?
Correct Answer: Option A
Explanation:
Alfred Nobel invented dynamite in 1867, and later used his enormous fortune to institute the Nobel Prizes.
Alfred Nobel invented dynamite in 1867, and later used his enormous fortune to institute the Nobel Prizes.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #13
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Who discovered insulin, saving millions of lives affected by diabetes?
Correct Answer: Option B
Explanation:
Sir Frederick Banting, along with Charles Best and John Macleod, isolated insulin in 1921-1922.
Sir Frederick Banting, along with Charles Best and John Macleod, isolated insulin in 1921-1922.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #14
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Who invented the mercury thermometer in 1714?
Correct Answer: Option D
Explanation:
Daniel Gabriel Fahrenheit invented the mercury-in-glass thermometer in 1714 and developed the Fahrenheit scale.
Daniel Gabriel Fahrenheit invented the mercury-in-glass thermometer in 1714 and developed the Fahrenheit scale.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #15
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The structure of DNA was discovered in 1953 by James Watson and Francis Crick with the crucial aid of data from whom?
Correct Answer: Option D
Explanation:
Rosalind Franklin's X-ray diffraction images (particularly Photo 51) were key to identifying the double-helix structure of DNA.
Rosalind Franklin's X-ray diffraction images (particularly Photo 51) were key to identifying the double-helix structure of DNA.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #16
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Who invented the lightning rod and bifocal lenses?
Correct Answer: Option C
Explanation:
Benjamin Franklin invented the lightning rod, bifocal spectacles, and the Franklin stove.
Benjamin Franklin invented the lightning rod, bifocal spectacles, and the Franklin stove.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #17
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Who discovered circulation of blood in the human body?
Correct Answer: Option C
Explanation:
William Harvey was an English physician who correctly described the systemic circulation and properties of blood being pumped to the brain and body by the heart.
William Harvey was an English physician who correctly described the systemic circulation and properties of blood being pumped to the brain and body by the heart.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #18
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The cell was first discovered and named by whom in 1665?
Correct Answer: Option D
Explanation:
Robert Hooke discovered plant cells in cork tissue under a primitive microscope in 1665 and coined the term 'cell'.
Robert Hooke discovered plant cells in cork tissue under a primitive microscope in 1665 and coined the term 'cell'.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #19
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Who invented the first working internal combustion engine powered by gasoline?
Correct Answer: Option C
Explanation:
Karl Benz is widely acknowledged as the inventor of the modern gasoline-powered automobile (1885/1886) using an internal combustion engine.
Karl Benz is widely acknowledged as the inventor of the modern gasoline-powered automobile (1885/1886) using an internal combustion engine.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #20
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Who discovered the law of hereditary transmission through experiments on pea plants?
Correct Answer: Option D
Explanation:
Gregor Mendel is known as the father of modern genetics for his discovery of the basic laws of heredity through breeding pea plants.
Gregor Mendel is known as the father of modern genetics for his discovery of the basic laws of heredity through breeding pea plants.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
