Who discovered the positron (the antiparticle of the electron) in 1932? MCQ with Answer and Explanation

Question
Who discovered the positron (the antiparticle of the electron) in 1932?
A. Carl Anderson
B. James Chadwick
C. Paul Dirac
D. Robert Millikan
Answer: Option A
Solution (By JKSSB Mock Tests)
Carl David Anderson discovered the positron using a cloud chamber to analyze cosmic rays, confirming Paul Dirac's theoretical prediction.
This question belongs to: Static General Knowledge Inventions and Discoveries
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Practice More Inventions and Discoveries Questions

Question #1
Who discovered the radioactive gas Radon in 1900?
A. Friedrich Ernst Dorn
B. Marie Curie
C. William Ramsay
D. Ernest Rutherford
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Correct Answer: Option A

Explanation:
Friedrich Ernst Dorn discovered radon while studying the radioactive decay chain of radium emissions.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #2
The concept of 'Inertia' was first formulated by which scientist before being formalized into laws by Newton?
A. Johannes Kepler
B. Nicolaus Copernicus
C. Aristotle
D. Galileo Galilei
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Correct Answer: Option D

Explanation:
Galileo Galilei developed the early concept of inertia, which Isaac Newton later refined into his First Law of Motion.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #3
Who discovered the bacterium Vibrio cholerae, the causative agent of cholera?
A. Louis Pasteur
B. Robert Koch
C. Joseph Lister
D. Alexander Fleming
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Correct Answer: Option B

Explanation:
Robert Koch isolated Vibrio cholerae in 1883 during an epidemic outbreak investigation in Egypt and India.
This question belongs to: Static General Knowledge Inventions and Discoveries
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