Who discovered that atomic elements possess unique magnetic configuration properties that line split inside specialized oven beam devices? MCQ with Answer and Explanation

Question

Who discovered that atomic elements possess unique magnetic configuration properties that line split inside specialized oven beam devices?

A. Otto Stern and Walther Gerlach

B. Wolfgang Pauli

C. Werner Heisenberg

D. Niels Bohr

Answer: Option A

Solution (By JKSSB Mock Tests)

The Stern-Gerlach experiment in 1922 physically demonstrated spatial quantization and electron spin attributes.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1

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The invention of the common mechanical device known as the modern coin-operated parking meter was patented by whom?

A. Walter Hunt

B. James Ritty

C. Garrett Morgan

D. Carl Magee

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Correct Answer: Option D

Explanation:
Carl Magee patented the 'Park-O-Meter' in Oklahoma City in 1935 to regulate downtown vehicle traffic turnover.

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Question #2

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The invention of the modern steam turbine, which enabled large-scale thermal electric power generation, was made by whom?

A. Thomas Newcomen

B. James Watt

C. Charles Parsons

D. George Stephenson

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Correct Answer: Option C

Explanation:
Sir Charles Parsons invented the multi-stage steam turbine in 1884, transforming maritime shipping and electric grids.

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Question #3

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The invention of the iconic acoustic phonograph recording flat disc format (Gramophone) was developed by whom?

A. Emile Berliner

B. Alexander Graham Bell

C. Nikola Tesla

D. Thomas Edison

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Correct Answer: Option A

Explanation:
Emile Berliner introduced flat zinc discs with lateral groove tracking in 1887, outperforming Edison's hollow wax storage cylinders.

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