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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
51
Who invented the safety elevator?
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52
Who discovered the HIV virus?
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53
Who invented the mechanical calculator (Pascaline)?
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54
Who discovered the main blood groups of the Rh system?
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55
Who invented the first electric motor?
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56
Who discovered the phenomenon of electromagnetic induction?
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57
Who invented the microscope with a single lens (simple microscope)?
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58
Who discovered the existence of gravitational waves?
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59
Who invented the cyclotron (particle accelerator)?
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60
Who discovered cosmic microwave background radiation?
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