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. Werner Heisenberg

B. Wolfgang Pauli

C. Otto Stern and Walther Gerlach

D. Niels Bohr

Answer: Option C

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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Who invented the liquid-fueled rocket engine, launching the world's first successful prototype in 1926?

A. Hermann Oberth

B. Robert Goddard

C. Konstantin Tsiolkovsky

D. Wernher von Braun

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Correct Answer: Option B

Explanation:
Robert H. Goddard launched the first liquid-fueled rocket (using gasoline and liquid oxygen) in Auburn, Massachusetts.

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Question #2

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Who discovered that the Earth's core is divided into solid inner and liquid outer layers?

A. Inge Lehmann

B. Andrija Mohorovičić

C. Beno Gutenberg

D. Charles Richter

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Correct Answer: Option A

Explanation:
Danish seismologist Inge Lehmann discovered the Earth's solid inner core in 1936 by studying seismic wave travel paths.

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Question #3

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Who discovered that the planet Neptune possesses a massive dark storm configuration known as the Great Dark Spot?

A. Urbain Le Verrier

B. William Herschel

C. Galileo Galilei

D. Voyager 2 NASA space probe team

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Correct Answer: Option D

Explanation:
The Voyager 2 planetary flyby in 1989 captured the first detailed atmospheric images of Neptune's large southern dark storm vortex.

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