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
21
Eric Cornell, Carl Wieman, and Wolfgang Ketterle won the Nobel Prize in Physics in 2001 for the achievement of:
Answer:
Bose-Einstein condensation
They produced a new state of matter where atoms cool down to near absolute zero and act as a single quantum entity.
22
Carl David Anderson shared the 1936 Nobel Prize in Physics for the discovery of the:
Answer:
Positron
Anderson discovered the positron, the first known antiparticle (antimatter counterpart to the electron).
23
Who won the Nobel Prize in Physics in 1936 for the discovery of cosmic radiation?
Answer:
Victor Franz Hess
Hess discovered cosmic rays during balloon flights, proving radiation came from outer space.
24
Peter Mitchell received the Nobel Prize in Chemistry in 1978 for his contribution to the understanding of biological energy transfer through the formulation of:
Answer:
The Chemiosmotic theory
His theory explains how ATP is generated in mitochondria via a proton gradient.
25
Gerhard Domagk was awarded the Nobel Prize in Medicine in 1939 for the discovery of the antibacterial effects of:
Answer:
Prontosil
Prontosil was the first commercially available antibiotic (a sulfonamide drug).
26
Who won the Nobel Prize in Chemistry in 1903 for the electrolytic theory of dissociation?
Answer:
Svante Arrhenius
Arrhenius provided the physical basis for the understanding of ions in solution.
27
David Julius and Ardem Patapoutian were awarded the 2021 Nobel Prize in Medicine for their discoveries of receptors for:
Answer:
Temperature and Touch
They identified the sensors in our nerve endings that allow us to feel heat, cold, and mechanical force.
28
Moungi Bawendi, Louis Brus, and Alexei Ekimov won the Nobel Prize in Chemistry in 2023 for the discovery and synthesis of:
Answer:
Quantum dots
Quantum dots are nanoparticles so small that their size determines their properties, used in QLED screens and medical imaging.
29
Michel Mayor and Didier Queloz shared the Nobel Prize in Physics in 2019 for the discovery of:
Answer:
An exoplanet orbiting a solar-type star
They discovered 51 Pegasi b, the first planet found orbiting a sun-like star outside our solar system.
30
Arthur Ashkin won the Nobel Prize in Physics in 2018 for the invention of:
Answer:
Optical tweezers
Optical tweezers use laser beams to grab particles, atoms, viruses, and other living cells.