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Science Discovery (General Knowledge) Solved Questions & Notes (2026) - Apex Rankers

General Competitive Exams > General Knowledge > Science Discovery

15 Total Solved Questions
~23 mins Estimated Reading Time
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Science Discovery

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Q. 1 General Knowledge
Difficulty: Easy (1 Mark)
The Scottish bacteriologist who discovered penicillin was:
A
Alexander Fleming
✓ Correct
B
Albert Einstein
C
Archimedes
D
Aryabhatta
💡 Step-by-Step Explanation & Concept Rationale
Fleming's 1928 discovery of the first antibiotic revolutionized modern medicine.
Q. 2 General Knowledge
Difficulty: Easy (1 Mark)
Christian Huygons was:
A
Dutch mathematician and physical renowned for evolving the wave theory o flights
B
Inventor of the pendulum clock based on Galileo’s theory
C
Discoverer of the rings of Saturn and its fourth satellite
D
All are correct
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Huygens was a leading scientist of the 17th century who made major contributions to optics and mechanics.
Q. 3 General Knowledge
Difficulty: Easy (1 Mark)
Who developed the small pox vaccination?
A
Edward Jenner
✓ Correct
B
Alexander Fleming
C
Albert Einstein
D
None of these
💡 Step-by-Step Explanation & Concept Rationale
Jenner is often called the "father of immunology" for his work on the world's first vaccine.
Q. 4 General Knowledge
Difficulty: Easy (1 Mark)
Euclid was:
A
Greek mathematician
B
Contributor to the use of deductive principles of logic as the basis of geometry
C
Propounded the geometrical theorems
D
All the statements are correct
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Known as the "father of geometry," Euclid's "Elements" is one of the most influential works in mathematics.
Q. 5 General Knowledge
Difficulty: Easy (1 Mark)
Gabriel Daniel Fahrenheit was:
A
A German Physicist
B
Developed the mercury thermometer in 1714
C
Devised temperature scale
D
All are correct
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Fahrenheit invented the mercury thermometer and the temperature scale that bears his name.
Q. 6 General Knowledge
Difficulty: Easy (1 Mark)
Galileo was an Italian astronomer who:
A
Developed the telescope
B
Discovered four satellites of Jupiter
C
Discovered that the movement of the pendulum produces a regular time measurement
D
All are correct
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Galileo's telescopic observations supported the Copernican heliocentric model.
Q. 7 General Knowledge
Difficulty: Easy (1 Mark)
Who invented the radio and wireless system?
A
Guglielmo Marconi
✓ Correct
B
John Dalton
C
Albert Einstein
D
Louis Braille
💡 Step-by-Step Explanation & Concept Rationale
Marconi's work in long-distance radio transmission earned him the Nobel Prize in Physics in 1909.
Q. 8 General Knowledge
Difficulty: Easy (1 Mark)
Sir Humphrey Davy was a British chemist who:
A
Invented the safety lamp for miners
B
Discovered the anesthetic properties of nitrous oxide
C
Both are correct
✓ Correct
D
None of these
💡 Step-by-Step Explanation & Concept Rationale
Davy was a pioneer in electrochemistry and the discovery of several alkali and alkaline earth metals.
Q. 9 General Knowledge
Difficulty: Easy (1 Mark)
Why is John Dalton famous?
A
He postulated the Atomic theory and defined atomic weight
B
He gave the law according to which the pressure of mixture of gases is the sum of the partial pressure of the component of the mixture
C
Both are correct
✓ Correct
D
None of these
💡 Step-by-Step Explanation & Concept Rationale
Dalton is best known for introducing the modern atomic theory into chemistry.
Q. 10 General Knowledge
Difficulty: Easy (1 Mark)
Who invented television in 1926?
A
John Loie Baird
✓ Correct
B
John Keats
C
John F. Kennedy
D
John Dalton
💡 Step-by-Step Explanation & Concept Rationale
Baird gave the first public demonstration of moving silhouette images in London.
Q. 11 General Knowledge
Difficulty: Easy (1 Mark)
The technique of pasteurizing milk is named after:
A
Louis Braille
B
Louis Pasteur
✓ Correct
C
Albert Einstein
D
Movie Curie
💡 Step-by-Step Explanation & Concept Rationale
Pasteur's process of heat treatment to kill pathogens revolutionized food safety.
Q. 12 General Knowledge
Difficulty: Easy (1 Mark)
Who received Nobel Prize in Chemistry for discovery of radium and polonium?
A
Madam Marie Curie
✓ Correct
B
Pierre Curie
C
Both (a) & (b)
D
None of these
💡 Step-by-Step Explanation & Concept Rationale
Marie Curie was the first woman to win a Nobel Prize and the only person to win in two different sciences.
Q. 13 General Knowledge
Difficulty: Easy (1 Mark)
Michael Faraday discovered:
A
Electromagnetism
B
Benzene, liquid gases and optical glass
C
The induction of electric current
D
All
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Faraday's work in electromagnetism and electrochemistry changed the course of physical science.
Q. 14 General Knowledge
Difficulty: Easy (1 Mark)
Pythagoras was first to ______ the universal validity of geometrical theorem:
A
Give
B
Prove
✓ Correct
C
Both (a) & (b)
D
None of these
💡 Step-by-Step Explanation & Concept Rationale
Pythagoras is credited with providing the first formal proof of the theorem concerning right-angled triangles.
Q. 15 General Knowledge
Difficulty: Easy (1 Mark)
Who invented magnifying glass and gun power?
A
Roger Bacon
✓ Correct
B
Rudolf Diesel
C
Sigmund Freud
D
Robert Boyle
💡 Step-by-Step Explanation & Concept Rationale
Bacon was a 13th-century philosopher who emphasized the importance of empirical scientific investigation.
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