Famous Scientists MCQs 2026
99 questions with detailed answers · 0 from past papers · 10 quiz batches available
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- Q1 medium
Who created the periodic table of elements
💡 Explanation:Dmitri Mendeleev created the periodic table in 1869, organizing elements by atomic weight and properties.
- Q2 medium
Who discovered X-rays
💡 Explanation:Wilhelm Roentgen discovered X-rays in 1895 and received the first Nobel Prize in Physics in 1901.
- Q3 medium
Who developed the first effective polio vaccine
💡 Explanation:Jonas Salk developed the first effective polio vaccine in 1955, saving millions from the disease.
- Q4 easy
Who invented the telephone
💡 Explanation:Alexander Graham Bell invented the telephone in 1876 and was awarded the first US patent for it.
- Q5 medium
Who is considered the "Father of Modern Chemistry"
💡 Explanation:Antoine Lavoisier is called the "Father of Modern Chemistry" for his work on the law of conservation of mass.
- Q6 medium
Who is known as the "Father of Genetics"
💡 Explanation:Gregor Mendel is called the "Father of Genetics" for his experiments with pea plants establishing inheritance laws.
- Q7 medium
Who discovered the structure of DNA
💡 Explanation:James Watson and Francis Crick discovered the double helix structure of DNA in 1953.
- Q8 medium
Who proposed the heliocentric model of the solar system
💡 Explanation:Nicolaus Copernicus proposed the heliocentric model with the Sun at the center of the solar system.
- Q9 easy
Who proposed the theory of evolution by natural selection
💡 Explanation:Charles Darwin published the theory of evolution by natural selection in his 1859 book "On the Origin of Species".
- Q10 easy
Who is known for developing the three laws of motion
💡 Explanation:Isaac Newton developed the three laws of motion and the law of universal gravitation.
- Q11 medium
Who discovered penicillin
💡 Explanation:Alexander Fleming discovered penicillin in 1928 when he noticed mold killing bacteria in a petri dish.
- Q12 hard
Who discovered the laws of electromagnetic induction
💡 Explanation:Michael Faraday discovered electromagnetic induction in 1831, laying the foundation for electric generators.
- Q13 hard
Who developed the theory of quantum mechanics
💡 Explanation:Max Planck is considered the father of quantum theory for introducing the concept of energy quanta in 1900.
- Q14 easy
Who formulated the laws of gravity
💡 Explanation:Isaac Newton formulated the universal law of gravitation in his work "Principia Mathematica" in 1687.
- Q15 hard
Who discovered the coronavirus
💡 Explanation:June Almeida discovered the first human coronavirus in 1964 using electron microscopy.
- Q16 medium
Who invented the first practical photography process
💡 Explanation:Louis Daguerre invented the daguerreotype process in 1839, the first practical photographic process.
- Q17 hard
Who developed the first television system
💡 Explanation:John Logie Baird demonstrated the first working television system in 1926.
- Q18 hard
Who developed the first contraceptive pill
💡 Explanation:Gregory Pincus developed the first oral contraceptive pill in the 1950s with collaboration from Margaret Sanger.
- Q19 hard
Who invented the first compound microscope
💡 Explanation:The Janssen brothers invented the compound microscope in the 1590s in the Netherlands.
- Q20 easy
Who proposed the theory of natural selection
💡 Explanation:Charles Darwin proposed the theory of natural selection in 1859, though Wallace independently developed a similar theory.
- Q21 hard
Who invented the seismograph
💡 Explanation:Zhang Heng invented the first seismograph in 132 AD during the Han dynasty in China.
- Q22 medium
Who invented the first mechanical computer
💡 Explanation:Charles Babbage designed the first mechanical computer, the Analytical Engine, in the 1830s.
- Q23 hard
Who invented the first practical electric motor
💡 Explanation:Michael Faraday invented the first electric motor in 1821, demonstrating electromagnetic rotation.
- Q24 hard
Who developed the theory of black holes
💡 Explanation:Stephen Hawking developed the theory of black hole radiation (Hawking radiation) in 1974.
- Q25 medium
Who proposed the heliocentric theory
💡 Explanation:Nicolaus Copernicus first proposed the heliocentric theory in his book "On the Revolutions" in 1543.
- Q26 medium
Who invented the first battery
💡 Explanation:Alessandro Volta invented the first true battery (Voltaic pile) in 1800.
- Q27 hard
Who discovered the planet Neptune mathematically
💡 Explanation:Adams and Le Verrier independently predicted Neptune's position, leading to its discovery in 1846.
- Q28 hard
Who discovered the law of conservation of energy
💡 Explanation:Hermann von Helmholtz formulated the law of conservation of energy, also known as the first law of thermodynamics.
- Q29 easy
Who invented the first practical incandescent light bulb
💡 Explanation:Thomas Edison developed a practical incandescent light bulb in 1879 with a carbon filament.
- Q30 medium
Who formulated the laws of planetary motion
💡 Explanation:Johannes Kepler formulated three laws of planetary motion, describing orbits as ellipses.
- Q31 medium
Who discovered the law of falling bodies
💡 Explanation:Galileo demonstrated that falling bodies accelerate at a constant rate, disproving Aristotle's theories.
- Q32 easy
Who developed the first successful airplane
💡 Explanation:Orville and Wilbur Wright successfully flew the first powered aircraft in 1903 at Kitty Hawk.
- Q33 hard
Who discovered how to preserve food by canning
💡 Explanation:Nicolas Appert invented food canning in 1809, earning a prize from the French government.
- Q34 easy
Who invented the first practical telephone
💡 Explanation:Alexander Graham Bell invented the first practical telephone in 1876.
- Q35 easy
Who developed the theory of relativity
💡 Explanation:Albert Einstein developed both the special and general theories of relativity.
- Q36 medium
Who developed the germ theory of disease
💡 Explanation:Louis Pasteur developed the germ theory of disease, showing that microorganisms cause many diseases.
- Q37 hard
Who formulated the law of conservation of mass
💡 Explanation:Antoine Lavoisier established the law of conservation of mass, stating that matter cannot be created or destroyed.
- Q38 hard
Who discovered cancer cells
💡 Explanation:Rudolf Virchow was instrumental in understanding cellular pathology and identifying cancer cells.
- Q39 medium
Who proposed the atomic theory of matter
💡 Explanation:John Dalton proposed the atomic theory of matter in 1803, stating that all matter is composed of atoms.
- Q40 medium
Who developed the polio vaccine
💡 Explanation:Jonas Salk developed the first effective polio vaccine, which was declared safe in 1955.
- Q41 medium
Who discovered the laws of inheritance
💡 Explanation:Gregor Mendel established the laws of inheritance through his experiments with pea plants.
- Q42 hard
Who formulated the uncertainty principle
💡 Explanation:Werner Heisenberg formulated the uncertainty principle in 1927, a fundamental concept in quantum mechanics.
- Q43 hard
Who proposed the theory of plate tectonics
💡 Explanation:J. Tuzo Wilson significantly contributed to plate tectonic theory, proposing the concept of transform faults.
- Q44 medium
Who is known as the "Father of Computer Science"
💡 Explanation:Charles Babbage is called the "Father of Computer Science" for designing the first mechanical computer.
- Q45 hard
Who discovered the ozone layer
💡 Explanation:Charles Fabry and Henri Buisson discovered the ozone layer in 1913 using spectroscopic methods.
- Q46 hard
Who discovered DNA structure using X-ray crystallography
💡 Explanation:Rosalind Franklin's X-ray diffraction images (Photo 51) were crucial in determining DNA's double helix structure.
- Q47 medium
Who discovered radioactivity
💡 Explanation:Henri Becquerel discovered radioactivity in 1896 while studying uranium compounds.
- Q48 medium
Who is known as the "Father of Modern Astronomy"
💡 Explanation:Galileo Galilei is called the "Father of Modern Astronomy" for his telescopic discoveries and support of heliocentrism.
- Q49 hard
Who developed the theory of continental drift
💡 Explanation:Alfred Wegener proposed the theory of continental drift in 1912, though it was initially rejected.
- Q50 easy
Who invented the light bulb
💡 Explanation:Thomas Edison developed a practical light bulb in 1879, while Joseph Swan developed an earlier version.
- Q51 medium
Who discovered the principles of vaccination
💡 Explanation:Edward Jenner developed the first smallpox vaccine in 1796, founding the science of immunology.
- Q52 easy
Who invented the printing press
💡 Explanation:Johann Gutenberg invented the movable type printing press in 1440, revolutionizing information dissemination.
- Q53 medium
Who invented the first atomic bomb
💡 Explanation:J. Robert Oppenheimer led the Manhattan Project and is known as the "father of the atomic bomb".
- Q54 hard
Who discovered the HIV virus
💡 Explanation:Luc Montagnier and Robert Gallo independently discovered HIV in 1983-1984.
- Q55 hard
Who discovered the electron
💡 Explanation:J.J. Thomson discovered the electron in 1897 through his experiments with cathode ray tubes.
- Q56 hard
Who discovered the circulatory system of the body
💡 Explanation:William Harvey discovered the circulatory system in 1628, describing the heart's role in blood circulation.
- Q57 hard
Who discovered the first human chromosome
💡 Explanation:Sutton and Boveri independently discovered chromosomes and their role in heredity around 1902.
- Q58 hard
Who invented the first wristwatch
💡 Explanation:Abraham-Louis Breguet designed the first wristwatch in 1810 for the Queen of Naples.
- Q59 medium
Who discovered the structure of the atom
💡 Explanation:Ernest Rutherford discovered the nuclear structure of the atom in 1911 through his gold foil experiment.
- Q60 medium
Who invented the first practical steam locomotive
💡 Explanation:Richard Trevithick built the first working steam locomotive in 1804 in Wales.
- Q61 medium
Who discovered the chemical element oxygen
💡 Explanation:Priestley and Scheele independently discovered oxygen, while Lavoisier named it and identified its role in combustion.
- Q62 hard
Who invented the first practical electric generator
💡 Explanation:Michael Faraday invented the first electric generator in 1831, known as the Faraday disk.
- Q63 medium
Who invented the first gas engine
💡 Explanation:Nikolaus Otto invented the four-stroke internal combustion engine in 1876.
- Q64 hard
Who discovered the cause of diabetes
💡 Explanation:Von Mering and Minkowski discovered in 1889 that the pancreas controls blood sugar, linking it to diabetes.
- Q65 hard
Who invented the first practical submarine
💡 Explanation:Cornelis Drebbel built the first functional submarine in 1620, powered by oars.
- Q66 hard
Who proposed the theory of punctuated equilibrium
💡 Explanation:Gould and Eldredge proposed punctuated equilibrium in 1972, suggesting evolution occurs in rapid bursts.
- Q67 hard
Who discovered the chemical elements phosphorus
💡 Explanation:Hennig Brand discovered phosphorus in 1669 while searching for the philosopher's stone.
- Q68 hard
Who invented the first practical solar cell
💡 Explanation:Charles Fritts invented the first solar cell in 1883, though Bell Labs created the first practical silicon cell in 1954.
- Q69 hard
Who invented the first practical bicycle
💡 Explanation:Kirkpatrick Macmillan invented the first pedal-driven bicycle in 1839.
- Q70 medium
Who invented the first effective antibiotic
💡 Explanation:Alexander Fleming discovered penicillin in 1928, but Florey and Chain developed it for clinical use.
- Q71 hard
Who discovered that the heart pumps blood
💡 Explanation:William Harvey discovered the circulation of blood and the heart's pumping function in 1628.
- Q72 hard
Who invented the first mechanical clock
💡 Explanation:Al-Jazari designed the first mechanical clock in 1206, using a water-driven mechanism.
- Q73 easy
Who is known as the "Father of Modern Physics"
💡 Explanation:Albert Einstein is called the "Father of Modern Physics" for his theories of relativity and quantum mechanics.
- Q74 hard
Who discovered the cause of scurvy
💡 Explanation:James Lind discovered in 1747 that citrus fruits prevent scurvy, though the cause was vitamin C deficiency.
- Q75 hard
Who discovered the first human blood groups
💡 Explanation:Landsteiner discovered ABO blood groups in 1900, with contributions from Wiener and Jansky.
- Q76 easy
Who invented the first successful airplane
💡 Explanation:Orville and Wilbur Wright achieved the first controlled, powered flight in 1903.
- Q77 hard
Who discovered the causes of yellow fever
💡 Explanation:Carlos Finlay proposed and Walter Reed confirmed that yellow fever is transmitted by mosquitoes in 1900.
- Q78 medium
Who invented the modern elevator
💡 Explanation:Elisha Otis invented the safety elevator in 1852, making skyscrapers possible.
- Q79 hard
Who developed the theory of chemical thermodynamics
💡 Explanation:J. Willard Gibbs developed the fundamental theory of chemical thermodynamics in the late 19th century.
- Q80 medium
Who invented the first ballpoint pen
💡 Explanation:László Bíró invented the modern ballpoint pen in 1931, though John Loud patented a similar design earlier.
- Q81 hard
Who invented the first synthetic fiber
💡 Explanation:Wallace Carothers invented nylon in 1935, the first synthetic polymer fiber.
- Q82 hard
Who discovered the principle of the pendulum
💡 Explanation:Galileo discovered the isochronism of the pendulum in 1583, observing that its period is independent of amplitude.
- Q83 medium
Who is known for the laws of planetary motion
💡 Explanation:Johannes Kepler formulated the three laws of planetary motion based on Tycho Brahe's observations.
- Q84 medium
Who formulated the theory of general relativity
💡 Explanation:Albert Einstein published the theory of general relativity in 1915, revolutionizing our understanding of gravity.
- Q85 medium
Who discovered the cause of tuberculosis
💡 Explanation:Robert Koch discovered the tuberculosis bacterium in 1882, earning the Nobel Prize for his work.
- Q86 hard
Who discovered the laws of reflection
💡 Explanation:Alhazen (Ibn al-Haytham) described the laws of reflection in his Book of Optics in 1021.
- Q87 medium
Who formulated the laws of electric circuits
💡 Explanation:Georg Ohm formulated Ohm's Law in 1827, relating voltage, current, and resistance in electric circuits.
- Q88 easy
Who invented the first printing press with movable type
💡 Explanation:Johannes Gutenberg invented the movable type printing press around 1440 in Mainz, Germany.
- Q89 hard
Who invented the microscope
💡 Explanation:The Janssen brothers invented the compound microscope in the 1590s, revolutionizing biology.
- Q90 hard
Who formulated the laws of thermodynamics
💡 Explanation:Several scientists contributed to thermodynamics, with Rudolf Clausius formulating its formal principles.
- Q91 medium
Who invented the steam engine
💡 Explanation:James Watt improved the steam engine design in 1765, significantly increasing its efficiency.
- Q92 hard
Who discovered insulin
💡 Explanation:Frederick Banting and Charles Best discovered insulin in 1921, revolutionizing diabetes treatment.
- Q93 hard
Who discovered the anti-malaria drug quinine
💡 Explanation:Pelletier and Caventou isolated quinine in 1820, while La Condamine first extracted it from cinchona bark.
- Q94 hard
Who proposed the theory of quantum electrodynamics
💡 Explanation:Feynman, Schwinger, and Tomonaga independently developed QED and shared the 1965 Nobel Prize.
- Q95 easy
Who discovered the principle of buoyancy
💡 Explanation:Archimedes discovered the principle of buoyancy while bathing, famously shouting "Eureka!"
- Q96 hard
Who discovered the structure of benzene
💡 Explanation:August Kekule proposed the ring structure of benzene in 1865 after dreaming of a snake biting its tail.
- Q97 medium
Who formulated the laws of heredity
💡 Explanation:Gregor Mendel formulated the laws of heredity through his pea plant experiments in the 1860s.
- Q98 medium
Who invented the first practical camera
💡 Explanation:George Eastman invented the Kodak camera and roll film in 1888, making photography accessible to everyone.
- Q99 hard
Who invented the telescope
💡 Explanation:Hans Lippershey invented the telescope in 1608, though Galileo was the first to use it for astronomy.