Who discovered that the chemical element Lithium is isolated from petalite mineral matrices? MCQ with Answer and Explanation
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Question #1
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Who discovered that electrical currents alter physical molecular rotation under polarized light fields, establishing the Faraday Effect?
Correct Answer: Option D
Explanation:
Faraday proved electromagnetism and optical light travel systems interact directly by rotating light polarization planes using magnetic fields in 1845.
Faraday proved electromagnetism and optical light travel systems interact directly by rotating light polarization planes using magnetic fields in 1845.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
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Who discovered that light exhibits particle-like momentum in scattering collisions with electrons, proving photon theory?
Correct Answer: Option A
Explanation:
Arthur Compton discovered the Compton Effect in 1923, providing explicit proof that light acts as discrete localized particles.
Arthur Compton discovered the Compton Effect in 1923, providing explicit proof that light acts as discrete localized particles.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
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Who formulated the quantum theory, establishing that energy is emitted in discrete packets called quanta?
Correct Answer: Option B
Explanation:
Max Planck introduced quantum theory in 1900, originating Planck's constant ($h$), and won the 1918 Nobel Prize.
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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