Who discovered that light waves traveling through tiny structural apertures display edge-bending profiles, establishing Diffraction? MCQ with Answer and Explanation
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Question #1
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The invention of the common electric toaster mechanism was achieved using nichrome wire by whom?
Correct Answer: Option D
Explanation:
Albert Marsh patented Nichrome resistance wire alloy, which enabled safe high-heat cycling within appliances like toasters.
Albert Marsh patented Nichrome resistance wire alloy, which enabled safe high-heat cycling within appliances like toasters.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
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Who discovered the planet Neptune using mathematical calculations before it was verified by telescope?
Correct Answer: Option D
Explanation:
Urbain Le Verrier and John Couch Adams independently calculated the location of Neptune based on irregularities in Uranus's orbit.
Urbain Le Verrier and John Couch Adams independently calculated the location of Neptune based on irregularities in Uranus's orbit.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
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Who discovered the primary mathematical law detailing electric current branching paths, known as the junction rule?
Correct Answer: Option B
Explanation:
Kirchhoff's Junction Rule states that the total current entering any electrical network node precisely matches the total current exiting it.
Kirchhoff's Junction Rule states that the total current entering any electrical network node precisely matches the total current exiting it.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
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