The discovery of the first pulsar (rotating neutron star) was achieved by which astrophysicist in 1967? MCQ with Answer and Explanation

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

A. Antony Hewish

B. Jocelyn Bell Burnell

C. Fred Hoyle

D. Subrahmanyan Chandrasekhar

Answer: Option B

Solution (By JKSSB Mock Tests)

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

This question belongs to: Static General Knowledge Inventions and Discoveries

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Who discovered ultraviolet radiation in 1801, shortly after Herschel's discovery of infrared?

A. William Herschel

B. Wilhelm Röntgen

C. Heinrich Hertz

D. Johann Wilhelm Ritter

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Correct Answer: Option D

Explanation:
Johann Wilhelm Ritter discovered 'chemical rays' (ultraviolet light) by observing how silver chloride reacted to invisible rays past the violet spectrum.

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Question #2

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The invention of the common medical diagnostic device known as the blood pressure cuff (Sphygmomanometer) was optimized by whom?

A. René Laennec

B. Joseph Lister

C. Willem Einthoven

D. Scipione Riva-Rocci and Harvey Cushing

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Correct Answer: Option D

Explanation:
Riva-Rocci introduced the mercury arm-cuff design in 1896, and neurosurgeon Harvey Cushing popularized it globally.

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Question #3

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Who discovered the therapeutic potential of the anti-malarial drug Artemisinin, winning a Nobel Prize in 2015?

A. Ronald Ross

B. Satoshi Ōmura

C. Charles Laveran

D. Tu Youyou

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Correct Answer: Option D

Explanation:
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