The invention of the common mechanical combination lock system used in bank vaults was patented by whom? MCQ with Answer and Explanation
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Question #1
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Who discovered that light waves can be deflected and focused by intense gravitational fields, a phenomenon known as gravitational lensing?
Correct Answer: Option D
Explanation:
Albert Einstein predicted gravitational lensing under his General Theory of Relativity, which was later observed observationally.
Albert Einstein predicted gravitational lensing under his General Theory of Relativity, which was later observed observationally.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
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The invention of the modern steam turbine, which enabled large-scale thermal electric power generation, was made by whom?
Correct Answer: Option D
Explanation:
Sir Charles Parsons invented the multi-stage steam turbine in 1884, transforming maritime shipping and electric grids.
Sir Charles Parsons invented the multi-stage steam turbine in 1884, transforming maritime shipping and electric grids.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
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The concept of 'Inertia' was first formulated by which scientist before being formalized into laws by Newton?
Correct Answer: Option C
Explanation:
Galileo Galilei developed the early concept of inertia, which Isaac Newton later refined into his First Law of Motion.
Galileo Galilei developed the early concept of inertia, which Isaac Newton later refined into his First Law of Motion.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
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