Who discovered the phenomenon of nuclear magnetic resonance (NMR), which forms the basis of modern MRI scanners? MCQ with Answer and Explanation

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Who discovered the phenomenon of nuclear magnetic resonance (NMR), which forms the basis of modern MRI scanners?

A. Isidor Isaac Rabi

B. Felix Bloch

C. Paul Lauterbur

D. Peter Mansfield

Answer: Option A

Solution (By JKSSB Mock Tests)

Isidor Isaac Rabi discovered nuclear magnetic resonance in 1938, for which he was awarded the Nobel Prize in Physics in 1944.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Who discovered the law of electromagnetic induction in 1831?

A. Hans Christian Ørsted

B. Heinrich Hertz

C. Michael Faraday

D. James Clerk Maxwell

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Correct Answer: Option C

Explanation:
Michael Faraday discovered electromagnetic induction, leading to the development of electric generators and transformers.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

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The invention of the common household device known as the electric food blender was developed by whom?

A. Alva Fisher

B. George Schneider

C. Thomas Edison

D. Stephen Poplawski

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Correct Answer: Option D

Explanation:
Poplawski patented the bottom-motor container cutting blender mechanism in 1922 to prepare fountain soda drinks.

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Question #3

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Who invented the first practical electronic pocket calculator, introduced commercially in 1970?

A. Sanyo and Texas Instruments teams

B. Douglas Engelbart

C. Alan Turing

D. Charles Babbage

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Correct Answer: Option A

Explanation:
Sanyo's ICC-0081 and Texas Instruments' 'Cal-Tech' project initiated the mass scaling of hand-held microelectronic computation.

This question belongs to: Static General Knowledge Inventions and Discoveries

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