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
Takaaki Kajita and Arthur B. McDonald won the Nobel Prize in Physics in 2015 for the discovery of:
Answer:
Neutrino oscillations
This discovery proved that neutrinos have mass, which contradicted the Standard Model of particle physics.
2
Who won the Nobel Prize in Chemistry in 2018 for the directed evolution of enzymes?
Answer:
Frances H. Arnold
Arnold used the principles of evolution to create enzymes with new and useful properties for biofuels and pharmaceuticals.
3
Arvid Carlsson, Paul Greengard, and Eric Kandel shared the 2000 Nobel Prize in Medicine for their discoveries concerning:
Answer:
Signal transduction in the nervous system
They revealed how memory works and how messages are transmitted between brain cells (involving dopamine and synapses).
4
Who won the Nobel Prize in Physics in 2023 for experimental methods that generate attosecond pulses of light?
Answer:
Pierre Agostini, Ferenc Krausz, and Anne L'Huillier
Their work allows scientists to study the rapid dynamics of electrons inside atoms and molecules.
5
Ilya Prigogine won the Nobel Prize in Chemistry in 1977 for his contributions to non-equilibrium thermodynamics, particularly the theory of:
Answer:
Dissipative structures
Prigogine showed how order can emerge from chaos in systems far from equilibrium.
6
Who won the Nobel Prize in Physics in 1979 along with Abdus Salam and Sheldon Glashow for the electroweak theory?
Answer:
Steven Weinberg
Weinberg, Salam, and Glashow unified the weak force and electromagnetic force into the electroweak force.
7
John O'Keefe, May-Britt Moser, and Edvard I. Moser won the 2014 Nobel Prize in Medicine for their discovery of:
Answer:
Cells that constitute a positioning system in the brain
They discovered 'place cells' and 'grid cells' that allow the brain to map space, often called the brain's inner GPS.
8
Who won the Nobel Prize in Chemistry in 1912 for the discovery of the Grignard reagent?
Answer:
Victor Grignard
The Grignard reagent is one of the most important tools in organic chemistry for forming carbon-carbon bonds.
9
George Beadle and Edward Tatum shared the 1958 Nobel Prize in Medicine for discovering that:
Answer:
Genes act by regulating definite chemical events (One gene-one enzyme)
Their hypothesis established the link between genes and enzymatic reactions.
10
Syukuro Manabe, Klaus Hasselmann, and Giorgio Parisi shared the 2021 Nobel Prize in Physics for groundbreaking contributions to our understanding of:
Answer:
Complex physical systems (Climate Change)
Manabe and Hasselmann laid the foundation of our knowledge of the Earth's climate and how humanity influences it.