Who discovered the specific mathematical constant linking the energy of a photon to its frequency? MCQ with Answer and Explanation

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Who discovered the specific mathematical constant linking the energy of a photon to its frequency?

A. Albert Einstein

B. Niels Bohr

C. Max Planck

D. Werner Heisenberg

Answer: Option C

Solution (By JKSSB Mock Tests)

Max Planck discovered Planck's constant ($h$) as part of his derivation of blackbody radiation energy laws.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1

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The periodic table of elements was first proposed in its widely recognized chronological form by whom?

A. Henry Moseley

B. Dmitri Mendeleev

C. Antoine Lavoisier

D. John Newlands

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Correct Answer: Option B

Explanation:
Dmitri Mendeleev published the first widely recognized periodic table in 1869, arranging elements by atomic mass.

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Question #2

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Who discovered that certain types of biological viruses infect and replicate exclusively inside bacterial cell hosts, establishing 'Bacteriophages'?

A. Louis Pasteur

B. Robert Koch

C. Dmitri Ivanovsky

D. Frederick Twort and Félix d'Hérelle

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Correct Answer: Option D

Explanation:
Twort and d'Hérelle independently isolated filterable bacterial lysis agents, establishing early phage therapeutic concepts.

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Question #3

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The invention of the jet engine is attributed to which British engineer?

A. James Dyson

B. Hans von Ohain

C. Frank Whittle

D. Christopher Cockerell

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Correct Answer: Option C

Explanation:
Sir Frank Whittle submitted the first patent for a turbojet engine in 1930, though Germany's Hans von Ohain built the first operational jet plane independently later.

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