Who formulated the quantum theory, establishing that energy is emitted in discrete packets called quanta? MCQ with Answer and Explanation

Question
Who formulated the quantum theory, establishing that energy is emitted in discrete packets called quanta?
A. Werner Heisenberg
B. Albert Einstein
C. Max Planck
D. Louis de Broglie
Answer: Option C
Solution (By JKSSB Mock Tests)
Max Planck introduced quantum theory in 1900, originating Planck's constant ($h$), and won the 1918 Nobel Prize.
This question belongs to: Static General Knowledge Inventions and Discoveries
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Question #1
Who discovered that electrical currents pass through vacuum cavities via discrete streams named 'Cathode Rays'?
A. J.J. Thomson
B. William Crookes and Julius Plücker
C. Michael Faraday
D. Wilhelm Röntgen
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Correct Answer: Option B

Explanation:
Plücker observed early glow phenomena, and Crookes engineered highly evacuated discharge tubes to isolate ray behaviors.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #2
Who discovered that the genetic molecule DNA can transition between stable 'A' and 'B' structural forms depending on relative humidity levels?
A. James Watson
B. Rosalind Franklin
C. Maurice Wilkins
D. Francis Crick
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Correct Answer: Option B

Explanation:
Franklin's meticulous control of humidity during X-ray diffraction isolation yielded the highly detailed 'B-form' structural patterns.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #3
The invention of the machine gun is historically associated with which American inventor?
A. Samuel Colt
B. Oliver Winchester
C. Richard Gatling
D. John Browning
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Correct Answer: Option C

Explanation:
Richard Gatling invented the Gatling gun, the first highly successful rapid-fire multi-barrel machine gun, during the American Civil War.
This question belongs to: Static General Knowledge Inventions and Discoveries
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