Who invented the electrocardiogram (ECG/EKG) device, winning a Nobel Prize in 1924? MCQ with Answer and Explanation
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Question #1
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Who discovered that the velocity of sound in a gas depends directly on the ratio of specific heats?
Correct Answer: Option B
Explanation:
Laplace corrected Newton's isothermal calculation of sound speed by incorporating adiabatic heating/cooling factors.
Laplace corrected Newton's isothermal calculation of sound speed by incorporating adiabatic heating/cooling factors.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
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Who formulated the mathematical equations governing the unified theory of electricity, magnetism, and optics?
Correct Answer: Option D
Explanation:
James Clerk Maxwell formulated Maxwell's Equations, proving that light is an electromagnetic wave.
James Clerk Maxwell formulated Maxwell's Equations, proving that light is an electromagnetic wave.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
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Who discovered that gases diffuse at specific rates relative to temperature variations, formalizing the Charles's Law?
Correct Answer: Option A
Explanation:
Jacques Charles collected gas expansion data in the 1780s, which Gay-Lussac later published as a direct linear volume-temperature relation.
Jacques Charles collected gas expansion data in the 1780s, which Gay-Lussac later published as a direct linear volume-temperature relation.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
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