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 C
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 C
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 A
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 B
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 D
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 C
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 B
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 B
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
