Who invented the first practical electronic digital computer with binary logic architecture, known as the Z3? MCQ with Answer and Explanation

Question
Who invented the first practical electronic digital computer with binary logic architecture, known as the Z3?
A. Tommy Flowers
B. Konrad Zuse
C. John von Neumann
D. Alan Turing
Answer: Option B
Solution (By JKSSB Mock Tests)
German engineer Konrad Zuse completed the Z3 in 1941, recognized as the world's first functional program-controlled Turing-complete computer.
This question belongs to: Static General Knowledge Inventions and Discoveries
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Question #1
Who discovered that light exhibits particle-like momentum in scattering collisions with electrons, proving photon theory?
A. Albert Einstein
B. Niels Bohr
C. Max Planck
D. Arthur Compton
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Correct Answer: Option D

Explanation:
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 #2
Who discovered that regular arrays of atoms act as diffraction gratings for X-rays, establishing X-ray crystallography?
A. William Henry Bragg
B. Wilhelm Röntgen
C. Max von Laue
D. Rosalind Franklin
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Correct Answer: Option C

Explanation:
Max von Laue discovered X-ray diffraction by crystals in 1912, proving the wave nature of X-rays and structural lattice layouts.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #3
Who discovered that the chemical element Calcium is isolated via electrolysis of lime and mercuric oxide mixtures?
A. Jöns Jacob Berzelius
B. Antoine Lavoisier
C. Joseph Black
D. Humphry Davy
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Correct Answer: Option D

Explanation:
Sir Humphry Davy isolated elemental calcium metal in 1808 using a mercury-cell electrolysis setup.
This question belongs to: Static General Knowledge Inventions and Discoveries
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