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
1
Who is the theoretical physicist known for his work on black holes and 'A Brief History of Time'?
Answer:
Stephen Hawking
Hawking made significant contributions to cosmology and quantum gravity, including Hawking radiation.
2
Who discovered X-rays in 1895?
Answer:
Wilhelm Conrad Röntgen
Röntgen discovered X-rays accidently while experimenting with cathode rays.
3
Who developed the first safe and effective vaccine for Smallpox?
Answer:
Edward Jenner
Jenner used cowpox material to create immunity to smallpox in 1796.
4
Who invented the World Wide Web?
Answer:
Tim Berners-Lee
Tim Berners-Lee invented the WWW in 1989 while working at CERN.
5
Who discovered the principle of displacement (Eureka moment)?
Answer:
Archimedes
Archimedes realized that a body immersed in fluid is buoyed up by a force equal to the weight of the fluid displaced.
6
Who proposed the heliocentric model of the universe?
Answer:
Nicolaus Copernicus
Copernicus proposed that the Sun, not the Earth, was at the center of the universe.
7
Who is known as the 'Father of Genetics'?
Answer:
Gregor Mendel
Mendel's experiments with pea plants established the fundamental laws of inheritance.
8
Who invented the first practical telephone?
Answer:
Alexander Graham Bell
Bell was awarded the first US patent for the telephone in 1876.
9
Who is considered the 'Father of Modern Chemistry'?
Answer:
Antoine Lavoisier
Lavoisier established the law of conservation of mass and helped systematize chemical nomenclature.
10
Who developed the theory of General Relativity?
Answer:
Albert Einstein
Einstein's theory revolutionized our understanding of gravity as the curvature of spacetime.