General Knowledge MCQs
Topic Notes: General Knowledge
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
61
Who is the British mathematician who cracked the Enigma code during WWII?
Answer:
Alan Turing
Turing's work at Bletchley Park was crucial to the Allied victory, and he is also a founding father of artificial intelligence.
62
Which scientist formulated the classical theory of electromagnetic radiation?
Answer:
James Clerk Maxwell
Maxwell's equations demonstrated that electricity, magnetism, and light are all manifestations of the same phenomenon: the electromagnetic field.
63
Who discovered that the universe is expanding?
Answer:
Edwin Hubble
Hubble showed that other galaxies are moving away from us, implying that the universe is expanding.
64
Who was the ancient Greek physician known as the 'Father of Medicine'?
Answer:
Hippocrates
Hippocrates separated medicine from religion and superstition, and the Hippocratic Oath is named after him.
65
Which physicist is known as the 'Father of the Atomic Bomb'?
Answer:
J. Robert Oppenheimer
Oppenheimer led the Manhattan Project's Los Alamos Laboratory, which developed the first nuclear weapons.
66
Who is credited with discovering the electron?
Answer:
J.J. Thomson
Thomson discovered the electron in 1897 using cathode ray tubes, proving that atoms were divisible.
67
Which scientist wrote 'Silent Spring' and launched the modern environmental movement?
Answer:
Rachel Carson
Carson's book exposed the dangers of pesticides, particularly DDT, and led to changes in environmental laws.
68
Who was the inventor of the alternating current (AC) electrical system?
Answer:
Nikola Tesla
Tesla championed the AC system, which eventually won the 'War of Currents' against Edison's DC system for power transmission.
69
Who discovered the double-helix structure of DNA along with Francis Crick?
Answer:
James Watson
James Watson and Francis Crick proposed the double-helix structure of DNA in 1953, heavily relying on data from Rosalind Franklin.
70
Which scientist is known for his 'Schrödinger's cat' thought experiment?
Answer:
Erwin Schrödinger
Schrödinger formulated the wave equation essential to quantum mechanics and proposed the famous cat paradox to illustrate the strangeness of superposition.