Who invented the pacemaker? MCQ with Answer and Explanation

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Who invented the pacemaker?

A. Rune Elmqvist

B. John Hopps

C. Paul Zoll

D. Wilson Greatbatch

Answer: Option D

Solution (By JKSSB Mock Tests)

Wilson Greatbatch invented the implantable pacemaker.

This question belongs to: Static General Knowledge First in the World

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Question #1

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Who discovered the first brown dwarf?

A. Multiple

B. Teide 1 discovery team

C. Gliese 229B team

D. Michael McElwain

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Correct Answer: Option C

Explanation:
Gliese 229B was the first confirmed brown dwarf.

This question belongs to: Static General Knowledge First in the World

Question #2

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Who invented the safety razor?

A. Jacob Schick

B. Josephine Cochrane

C. William Henson

D. King C. Gillette

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Correct Answer: Option D

Explanation:
King Camp Gillette invented the safety razor.

This question belongs to: Static General Knowledge First in the World

Question #3

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Who was the first person to travel to the bottom of the Mariana Trench?

A. Jacques Piccard and Don Walsh

B. Victor Vescovo

C. James Cameron

D. Sylvia Earle

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Correct Answer: Option A

Explanation:
They achieved this in 1960 aboard the Trieste.

This question belongs to: Static General Knowledge First in the World

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