Who discovered the specific mathematical formula detailing gas density variation relative to molecular weight, known as the diffusion law? MCQ with Answer and Explanation

Question

Who discovered the specific mathematical formula detailing gas density variation relative to molecular weight, known as the diffusion law?

A. Amadeo Avogadro

B. Robert Boyle

C. John Dalton

D. Thomas Graham

Answer: Option D

Solution (By JKSSB Mock Tests)

Graham's Law states that the rate of effusion or diffusion of a gas is inversely proportional to the square root of its molecular mass.

This question belongs to: Static General Knowledge Inventions and Discoveries

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The invention of the common computing networking layout known as TCP/IP was co-developed by whom?

A. Alan Turing

B. Vint Cerf and Bob Kahn

C. Robert Metcalfe

D. Tim Berners-Lee

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Correct Answer: Option B

Explanation:
Cerf and Kahn designed the transmission control and internet communication protocols for ARPANET during the 1970s.

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Question #2

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Who invented the lithium-ion battery architecture, winning the Nobel Prize in Chemistry in 2019?

A. John B. Goodenough, M. Stanley Whittingham, and Akira Yoshino

B. Thomas Edison

C. Gaston Planté

D. Alessandro Volta

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Correct Answer: Option A

Explanation:
These three scientists developed the lightweight, rechargeable, and highly energetic lithium-ion battery technology.

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Question #3

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Who invented the first thermionic valve (vacuum tube diode) in 1904?

A. Thomas Edison

B. John Ambrose Fleming

C. Nikola Tesla

D. Lee de Forest

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Correct Answer: Option B

Explanation:
John Ambrose Fleming invented the oscillation valve, the first vacuum tube diode, which transformed radio technology.

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