Scientific Discoveries MCQs with Answers
Who discovered penicillin, the first antibiotic?
a) Alexander Fleming
b) Louis Pasteur
c) Robert Koch
d) Jonas Salk
Answer: a) Alexander Fleming
Who proposed the theory of relativity, which revolutionized the field of physics?
a) Isaac Newton
b) Albert Einstein
c) Marie Curie
d) Galileo Galilei
Answer: b) Albert Einstein
Who discovered the laws of motion and universal gravitation?
a) Isaac Newton
b) Albert Einstein
c) Nikola Tesla
d) Galileo Galilei
Answer: a) Isaac Newton
Who discovered the structure of DNA?
a) Francis Crick and James Watson
b) Rosalind Franklin
c) Linus Pauling
d) Maurice Wilkins
Answer: a) Francis Crick and James Watson
Who discovered the theory of evolution by natural selection?
a) Charles Darwin
b) Gregor Mendel
c) Alfred Russel Wallace
d) Thomas Edison
Answer: a) Charles Darwin
Who discovered the law of gravity?
a) Isaac Newton
b) Albert Einstein
c) Nikola Tesla
d) Galileo Galilei
Answer: a) Isaac Newton
Who discovered the electron?
a) J.J. Thomson
b) Ernest Rutherford
c) James Chadwick
d) Niels Bohr
Answer: a) J.J. Thomson
Who discovered the theory of general relativity?
a) Albert Einstein
b) Isaac Newton
c) Marie Curie
d) Galileo Galilei
Answer: a) Albert Einstein
Who discovered radioactivity?
a) Marie Curie
b) Antoine Lavoisier
c) Ernest Rutherford
d) Max Planck
Answer: a) Marie Curie
Who discovered the double-helix structure of DNA along with Francis Crick?
a) James Watson
b) Rosalind Franklin
c) Linus Pauling
d) Maurice Wilkins
Answer: a) James Watson
Who discovered the law of conservation of energy?
a) James Joule
b) Isaac Newton
c) Albert Einstein
d) Werner Heisenberg
Answer: a) James Joule
Who discovered the laws of heredity through his experiments with pea plants?
a) Gregor Mendel
b) Charles Darwin
c) Rosalind Franklin
d) Alfred Russel Wallace
Answer: a) Gregor Mendel
Who discovered the concept of radio waves and developed the first radio transmitter and receiver?
a) Guglielmo Marconi
b) Thomas Edison
c) Nikola Tesla
d) Samuel Morse
Answer: a) Guglielmo Marconi
Who discovered the law of conservation of mass?
a) Antoine Lavoisier
b) Dmitri Mendeleev
c) John Dalton
d) Isaac Newton
Answer: a) Antoine Lavoisier
Who discovered the existence of neutrons?
a) James Chadwick
b) J.J. Thomson
c) Ernest Rutherford
d) Niels Bohr
Answer: a) James Chadwick
Who discovered the first effective vaccine for smallpox?
a) Edward Jenner
b) Louis Pasteur
c) Robert Koch
d) Jonas Salk
Answer: a) Edward Jenner
Who discovered the laws of thermodynamics?
a) Sadi Carnot
b) James Joule
c) Max Planck
d) Rudolf Clausius
Answer: d) Rudolf Clausius
Who discovered the law of conservation of electric charge?
a) Benjamin Franklin
b) Michael Faraday
c) Alessandro Volta
d) Thomas Edison
Answer: b) Michael Faraday
Who discovered the concept of black holes?
a) Albert Einstein
b) Stephen Hawking
c) Karl Schwarzschild
d) Isaac Newton
Answer: c) Karl Schwarzschild
Who discovered the process of nuclear fission?
a) Otto Hahn
b) Lise Meitner
c) Enrico Fermi
d) Ernest Rutherford
Answer: a) Otto Hahn
Who discovered the concept of quantum mechanics?
a) Max Planck
b) Albert Einstein
c) Werner Heisenberg
d) Erwin Schrödinger
Answer: a) Max Planck
Who discovered the laws of planetary motion?
a) Johannes Kepler
b) Isaac Newton
c) Galileo Galilei
d) Tycho Brahe
Answer: a) Johannes Kepler
Who discovered the existence of X-rays?
a) Wilhelm Conrad Roentgen
b) Marie Curie
c) Ernest Rutherford
d) Max Planck
Answer: a) Wilhelm Conrad Roentgen
Who discovered the law of electromagnetic induction?
a) Michael Faraday
b) James Clerk Maxwell
c) Heinrich Hertz
d) Nikola Tesla
Answer: a) Michael Faraday
Who discovered the concept of the Big Bang theory?
a) Georges Lemaître
b) Albert Einstein
c) Edwin Hubble
d) Stephen Hawking
Answer: a) Georges Lemaître
Who discovered the concept of plate tectonics?
a) Alfred Wegener
b) Charles Darwin
c) Isaac Newton
d) Marie Curie
Answer: a) Alfred Wegener
Who discovered the concept of natural selection independently of Charles Darwin?
a) Alfred Russel Wallace
b) Gregor Mendel
c) Rosalind Franklin
d) Thomas Edison
Answer: a) Alfred Russel Wallace
Who discovered the existence of the ozone layer in the Earth’s atmosphere?
a) Charles Fabry and Henri Buisson
b) James Clerk Maxwell
c) Christian Doppler
d) Maurice Wilkins
Answer: a) Charles Fabry and Henri Buisson
Who discovered the concept of genetic inheritance through his experiments with fruit flies?
a) Thomas Hunt Morgan
b) Rosalind Franklin
c) Linus Pauling
d) Maurice Wilkins
Answer: a) Thomas Hunt Morgan
Who discovered the law of conservation of angular momentum?
a) Isaac Newton
b) Albert Einstein
c) Nikola Tesla
d) James Clerk Maxwell
Answer: a) Isaac Newton
Who discovered the process of photosynthesis in plants?
a) Jan Ingenhousz
b) Gregor Mendel
c) Antoine Lavoisier
d) Thomas Edison
Answer: a) Jan Ingenhousz
Who discovered the concept of the Big Bang theory independently of Georges Lemaître?
a) Edwin Hubble
b) Albert Einstein
c) Stephen Hawking
d) Werner Heisenberg
Answer: a) Edwin Hubble
Who discovered the concept of radioactivity alongside Marie Curie?
a) Antoine Becquerel
b) Ernest Rutherford
c) Max Planck
d) Rudolf Clausius
Answer: a) Antoine Becquerel
Who discovered the existence of quarks, the fundamental particles that make up protons and neutrons?
a) Murray Gell-Mann
b) Richard Feynman
c) Enrico Fermi
d) Niels Bohr
Answer: a) Murray Gell-Mann
Who discovered the concept of the conservation of momentum?
a) Isaac Newton
b) Albert Einstein
c) Galileo Galilei
d) James Clerk Maxwell
Answer: a) Isaac Newton
Who discovered the concept of the greenhouse effect and its role in global warming?
a) Joseph Fourier
b) Svante Arrhenius
c) James Joule
d) James Clerk Maxwell
Answer: a) Joseph Fourier
Who discovered the existence of subatomic particles called electrons?
a) J.J. Thomson
b) Ernest Rutherford
c) James Chadwick
d) Niels Bohr
Answer: a) J.J. Thomson
Who discovered the process of nuclear fusion in the Sun and stars?
a) Hans Bethe
b) Albert Einstein
c) Werner Heisenberg
d) Erwin Schrödinger
Answer: a) Hans Bethe
Who discovered the concept of entropy and the second law of thermodynamics?
a) Rudolf Clausius
b) James Joule
c) Max Planck
d) Sadi Carnot
Answer: a) Rudolf Clausius
Who discovered the concept of the gene and its role in inheritance?
a) Gregor Mendel
b) Charles Darwin
c) Rosalind Franklin
d) Alfred Russel Wallace
Answer: a) Gregor Mendel