Famous Scientists & Discoveries — Homi Bhabha Exam General Knowledge MCQs with Solutions
Free Homi Bhabha Exam General Knowledge Famous Scientists & Discoveries MCQs with step-by-step solutions (15 questions). Part of Scientists & Nobel Laureates. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Famous Scientists & Discoveries · medium · theory
The laws of motion and the law of universal gravitation were given by:
A. Albert Einstein
B. Michael Faraday
C. Isaac Newton ✓ Correct
D. Galileo Galilei
Solution: Sir Isaac Newton formulated the three laws of motion and the law of gravitation.
Q2 — Famous Scientists & Discoveries · medium · theory
The famous equation E = mc² and the theory of relativity were given by:
A. Niels Bohr
B. C. V. Raman
C. Isaac Newton
D. Albert Einstein ✓ Correct
Solution: Albert Einstein proposed the theory of relativity and the mass–energy relation E = mc².
Q3 — Famous Scientists & Discoveries · hard · theory
The theory of evolution by natural selection was proposed by:
A. Charles Darwin ✓ Correct
B. Louis Pasteur
C. Gregor Mendel
D. Robert Hooke
Solution: Charles Darwin explained evolution through natural selection in "On the Origin of Species".
Q4 — Famous Scientists & Discoveries · medium · theory
The scientist who discovered the electron was:
A. J. J. Thomson ✓ Correct
B. James Chadwick
C. Ernest Rutherford
D. John Dalton
Solution: J. J. Thomson discovered the electron in 1897.
Q5 — Famous Scientists & Discoveries · hard · theory
The nucleus of the atom was discovered by:
A. Niels Bohr
B. John Dalton
C. J. J. Thomson
D. Ernest Rutherford ✓ Correct
Solution: Rutherford's gold-foil experiment revealed the tiny, dense, positive nucleus.
Q6 — Famous Scientists & Discoveries · medium · theory
The antibiotic penicillin was discovered by:
A. Edward Jenner
B. Louis Pasteur
C. Alexander Fleming ✓ Correct
D. Robert Koch
Solution: Alexander Fleming discovered penicillin from the mould Penicillium in 1928.
Q7 — Famous Scientists & Discoveries · hard · theory
The first successful vaccine (against smallpox) was developed by:
A. Alexander Fleming
B. Edward Jenner ✓ Correct
C. Jonas Salk
D. Louis Pasteur
Solution: Edward Jenner developed the smallpox vaccine in 1796.
Q8 — Famous Scientists & Discoveries · medium · theory
The telephone was invented by:
A. Thomas Edison
B. Nikola Tesla
C. Alexander Graham Bell ✓ Correct
D. Guglielmo Marconi
Solution: Alexander Graham Bell is credited with inventing the telephone in 1876.
Q9 — Famous Scientists & Discoveries · medium · theory
The electric light bulb was developed by:
A. Michael Faraday
B. Alexander Bell
C. James Watt
D. Thomas Edison ✓ Correct
Solution: Thomas Edison developed a practical incandescent light bulb.
Q10 — Famous Scientists & Discoveries · hard · theory
The phenomenon of electromagnetic induction (basis of generators) was discovered by:
A. Isaac Newton
B. Michael Faraday ✓ Correct
C. Alessandro Volta
D. Georg Ohm
Solution: Michael Faraday discovered electromagnetic induction in 1831.
Q11 — Famous Scientists & Discoveries · hard · theory
The principle of buoyancy ("a body immersed in a fluid is buoyed up...") was given by:
A. Pascal
B. Newton
C. Aristotle
D. Archimedes ✓ Correct
Solution: Archimedes' principle describes the upthrust on a body immersed in a fluid.
Q12 — Famous Scientists & Discoveries · medium · theory
The father of genetics, who experimented on pea plants, was:
A. Watson
B. Hooke
C. Gregor Mendel ✓ Correct
D. Charles Darwin
Solution: Gregor Mendel established the basic laws of heredity.
Q13 — Famous Scientists & Discoveries · hard · theory
The scientist who greatly advanced the study of radioactivity and discovered radium was:
A. Michael Faraday
B. Charles Darwin
C. Marie Curie ✓ Correct
D. Isaac Newton
Solution: Marie Curie pioneered research on radioactivity and discovered radium and polonium.
Q14 — Famous Scientists & Discoveries · medium · theory
The first powered aeroplane was built and flown by the:
A. Curie sisters
B. Wright brothers ✓ Correct
C. Bernoulli brothers
D. Newton brothers
Solution: Orville and Wilbur Wright made the first powered flight in 1903.
Q15 — Famous Scientists & Discoveries · hard · theory
Galileo Galilei is famous for improving the telescope and for supporting the idea that:
A. the Earth is flat
B. the Sun revolves around the Earth
C. the Moon produces its own light
D. the Earth revolves around the Sun ✓ Correct
Solution: Galileo supported the heliocentric (Sun-centred) model using telescopic observations.