GK - Inventions and Discoveries
1.
Blood Circulation was discovered by
Answer
William Harvey was an English physician who made seminal contributions in anatomy and physiology. He was the first known physician to describe completely, and in detail, the systemic circulation and properties of blood being pumped to the brain and body by the heart.
Answer :
Option CExplanation :
William Harvey was an English physician who made seminal contributions in anatomy and physiology. He was the first known physician to describe completely, and in detail, the systemic circulation and properties of blood being pumped to the brain and body by the heart.
2.
Who had discovered TB antibiotic streptomycin?
Answer
Selman Waksman was an inventor, biochemist and microbiologist. He discovered streptomycin and several other antibiotics. In 1952 Waksman was the recipient of the Nobel Prize in Physiology or Medicine in recognition "for his discovery of streptomycin, the first antibiotic active against tuberculosis".
Answer :
Option CExplanation :
Selman Waksman was an inventor, biochemist and microbiologist. He discovered streptomycin and several other antibiotics. In 1952 Waksman was the recipient of the Nobel Prize in Physiology or Medicine in recognition "for his discovery of streptomycin, the first antibiotic active against tuberculosis".
3.
Blaise Pascal is associated with
Answer
Mathematician Blaise Pascal in 1640s invented the Pascaline, an early calculator.
Answer :
Option AExplanation :
Mathematician Blaise Pascal in 1640s invented the Pascaline, an early calculator.
4.
Electron was discovered by
Answer
Electron was discovered by J. J. Thomson in Cathode Ray Tube (CRT) experiment.
Answer :
Option CExplanation :
Electron was discovered by J. J. Thomson in Cathode Ray Tube (CRT) experiment.
5.
Atomic theory was devised by
Answer
Democritus first suggested the existence of the atom but it took almost two millennia before the atom was placed on a solid foothold as a fundamental chemical object by John Dalton
Answer :
Option BExplanation :
Democritus first suggested the existence of the atom but it took almost two millennia before the atom was placed on a solid foothold as a fundamental chemical object by John Dalton
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