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
2941
Who discovered Penicillin, for which he shared the Nobel Prize in Physiology or Medicine in 1945?
Answer:
Alexander Fleming
Sir Alexander Fleming, along with Ernst Chain and Howard Florey, was awarded the 1945 Nobel Prize in Physiology or Medicine for the discovery of penicillin and its curative effect in various infectious diseases.
2942
Which scientists were awarded the 2020 Nobel Prize in Chemistry for the development of CRISPR-Cas9 genetic scissors?
Answer:
Emmanuelle Charpentier and Jennifer Doudna
Emmanuelle Charpentier and Jennifer Doudna were awarded the 2020 Nobel Prize in Chemistry for the development of a method for genome editing known as CRISPR-Cas9.
2943
Albert Einstein was awarded the Nobel Prize in Physics in 1921 primarily for which discovery?
Answer:
The Photoelectric Effect
While famous for relativity, Albert Einstein was awarded the 1921 Nobel Prize in Physics specifically for his discovery of the law of the photoelectric effect.
2944
The 2023 Nobel Prize in Physiology or Medicine was awarded for discoveries that enabled the development of which type of vaccines?
Answer:
mRNA vaccines against COVID-19
Katalin Karikó and Drew Weissman received the 2023 Nobel Prize in Physiology or Medicine for their discoveries concerning nucleoside base modifications that enabled the development of effective mRNA vaccines against COVID-19.
2945
Who is the only person to have won Nobel Prizes in two different scientific fields (Physics and Chemistry)?
Answer:
Marie Curie
Marie Curie is the only person to win Nobel Prizes in two different scientific fields: Physics in 1903 (for radioactivity) and Chemistry in 1911 (for the discovery of radium and polonium).
2946
Which two scientists received the 2024 Nobel Prize in Physiology or Medicine for the discovery of microRNA?
Answer:
Victor Ambros and Gary Ruvkun
Victor Ambros and Gary Ruvkun were awarded the 2024 Nobel Prize in Physiology or Medicine for the discovery of microRNA and its role in post-transcriptional gene regulation.
2947
The 2024 Nobel Prize in Chemistry was awarded to David Baker, Demis Hassabis, and John Jumper for breakthroughs in which field?
Answer:
Protein structure design and prediction
The 2024 Nobel Prize in Chemistry was awarded to David Baker for computational protein design, and to Demis Hassabis and John Jumper for protein structure prediction (specifically the AlphaFold model).
2948
Who were awarded the Nobel Prize in Physics in 2024 for their foundational discoveries in machine learning with artificial neural networks?
Answer:
John J. Hopfield and Geoffrey E. Hinton
The 2024 Nobel Prize in Physics was awarded to John J. Hopfield and Geoffrey E. Hinton for their foundational discoveries and inventions that enable machine learning with artificial neural networks.
2949
Which renewable energy technology exploits the temperature difference between the ocean surface and deep water?
Answer:
OTEC (Ocean Thermal Energy Conversion)
Ocean Thermal Energy Conversion (OTEC) is a process that can produce electricity by using the temperature difference between deep cold ocean water and warm tropical surface waters.
2950
What is 'Agroforestry'?
Answer:
Integrating trees and shrubs into crop and animal farming systems
Agroforestry is a land-use management system in which trees or shrubs are grown around or among crops or pastureland, providing environmental and economic benefits.