Who discovered the first multi-planet system? MCQ with Answer and Explanation

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Who discovered the first multi-planet system?

A. Both

B. Kepler

C. Pulsar planets

D. Aleksander Wolszczan

Answer: Option D

Solution (By JKSSB Mock Tests)

Wolszczan discovered around pulsar.

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Question #1

Who was the first person to split the atom?

A. Niels Bohr

B. Ernest Rutherford

C. Marie Curie

D. J.J. Thomson

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Correct Answer: Option B

Explanation:
Ernest Rutherford achieved the first artificial nuclear reaction.

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Question #2

Who was the first person to perform a successful blood transfusion?

A. Jean-Baptiste Denys

B. William Harvey

C. Karl Landsteiner

D. James Blundell

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Correct Answer: Option A

Explanation:
Jean-Baptiste Denys is credited with performing the first recorded human blood transfusion in 1667.

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Question #3

Who was the first female Chancellor of Germany?

A. Margaret Thatcher

B. Sirimavo Bandaranaike

C. Angela Merkel

D. Golda Meir

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Correct Answer: Option C

Explanation:
Angela Merkel served as Chancellor from 2005 to 2021.

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