Who discovered the existence of the atomic nucleus through the famous Gold Foil Experiment? MCQ with Answer and Explanation

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Who discovered the existence of the atomic nucleus through the famous Gold Foil Experiment?

A. Ernest Rutherford

B. J.J. Thomson

C. John Dalton

D. Niels Bohr

Answer: Option A

Solution (By JKSSB Mock Tests)

Ernest Rutherford discovered the dense, positively charged atomic nucleus in 1911 by firing alpha particles at thin gold sheets.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1

Who discovered circulation of blood in the human body?

A. William Harvey

B. Robert Hooke

C. Andreas Vesalius

D. Karl Landsteiner

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Correct Answer: Option A

Explanation:
William Harvey was an English physician who correctly described the systemic circulation and properties of blood being pumped to the brain and body by the heart.

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Question #2

The invention of the common mechanical device known as the automobile automatic transmission assembly was engineered by whom?

A. Karl Benz

B. Earl Thompson and the General Motors team

C. Rudolf Diesel

D. Henry Ford

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Correct Answer: Option B

Explanation:
Thompson designed the 'Hydra-Matic' system, which was introduced by Oldsmobile in 1939 as the first mass-market automatic transmission.

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Question #3

The discovery of the first pulsar (rotating neutron star) was achieved by which astrophysicist in 1967?

A. Jocelyn Bell Burnell

B. Fred Hoyle

C. Subrahmanyan Chandrasekhar

D. Antony Hewish

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Correct Answer: Option A

Explanation:
Jocelyn Bell Burnell discovered the first radio pulsars as a postgraduate student, although her advisor Antony Hewish received the Nobel Prize.

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