Who discovered the presence of the planet Jupiter's four largest satellite moons in 1610? 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 D
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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The invention of the lead-acid rechargeable battery in 1859, still used in automobiles today, was done by whom?
Correct Answer: Option A
Explanation:
French physicist Gaston Planté invented the lead-acid cell, the first chemical battery that could be recharged by reversing the current.
French physicist Gaston Planté invented the lead-acid cell, the first chemical battery that could be recharged by reversing the current.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
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Who invented the first working internal combustion engine powered by gasoline?
Correct Answer: Option A
Explanation:
Karl Benz is widely acknowledged as the inventor of the modern gasoline-powered automobile (1885/1886) using an internal combustion engine.
Karl Benz is widely acknowledged as the inventor of the modern gasoline-powered automobile (1885/1886) using an internal combustion engine.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
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