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 credited with the invention of the aeroplane?
Answer:
The Wright Brothers
Orville and Wilbur Wright are credited with inventing, building, and flying the first successful motor-operated airplane in 1903.
62
Who invented the printing press?
Answer:
Johannes Gutenberg
Johannes Gutenberg invented the movable-type printing press around 1440, which played a key role in the spread of knowledge.
63
Who invented the steam engine (significant improvements making it practical)?
Answer:
James Watt
While early versions existed, James Watt's improvements in the late 18th century made the steam engine efficient and fundamental to the Industrial Revolution.
64
Who invented the radio?
Answer:
Guglielmo Marconi
Guglielmo Marconi is credited with the invention of the radio and received the Nobel Prize for his work in wireless telegraphy.
65
Who developed the theory of relativity?
Answer:
Albert Einstein
Albert Einstein developed the theory of relativity (Special and General), which revolutionized our understanding of space, time, and gravity.
66
Who invented the light bulb (commercially practical version)?
Answer:
Thomas Edison
Thomas Edison is credited with inventing the first commercially practical incandescent light bulb in 1879.
67
Who discovered X-rays?
Answer:
Wilhelm Röntgen
Wilhelm Röntgen discovered X-rays in 1895, a discovery that earned him the first Nobel Prize in Physics.
68
Who invented the telephone?
Answer:
Alexander Graham Bell
Alexander Graham Bell was awarded the first U.S. patent for the telephone in 1876.
69
Who is known as the 'Father of the Computer'?
Answer:
Charles Babbage
Charles Babbage is considered the 'Father of the Computer' for conceptualizing the first automatic digital computer, the Analytical Engine.
70
Who discovered Penicillin, the first antibiotic?
Answer:
Alexander Fleming
Alexander Fleming discovered Penicillin in 1928 by accident when he noticed a mold killing bacteria in a petri dish.