Who discovered that atomic particle paths can be tracked via condensation trails inside gas chambers, establishing the Cloud Chamber? MCQ with Answer and Explanation

Who discovered that atomic particle paths can be tracked via condensation trails inside gas chambers, establishing the Cloud Chamber?
A. Robert Millikan
B. Charles Thomson Rees Wilson
C. J.J. Thomson
D. Ernest Rutherford
Answer: Option B
Solution (By JKSSB Mock Tests)
C.T.R. Wilson invented the cloud chamber in 1911 to study cloud formations, which became an invaluable tool for nuclear tracking and cosmic ray discoveries.

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Practice More Inventions and Discoveries Questions

Question #1
The invention of the first functional high-voltage electrostatic generator capsule was designed by whom?
A. Nikola Tesla
B. Alessandro Volta
C. Robert J. Van de Graaff
D. Michael Faraday

Correct Answer: Option C


Explanation:
Van de Graaff invented the high-potential belt-driven static generator in 1929 for particle acceleration experiments.

Question #2
The invention of the modern calendar system used globally today, the Gregorian Calendar, was introduced by which pope in 1582?
A. Pope Gregory VII
B. Pope Gregory XIII
C. Pope Julius II
D. Pope Urban II

Correct Answer: Option B


Explanation:
Pope Gregory XIII decreed the modification of the older Julian calendar to fix errors regarding the length of the solar year.

Question #3
The invention of the common mechanical office stapler mechanism was popularized by which manufacturing developer?
A. Walter Hunt
B. George McGill and the Boston Wire Stitcher Company
C. Christopher Sholes
D. John Loud

Correct Answer: Option B


Explanation:
McGill patented functional malleable brass paper fasteners, and industrial developers later automated magazine tracking feeds.