Multiple choice general knowledge science & technology

What Enrico Fermi invented?

  1. X ray machine

  2. Betatron

  3. Cyclotron

  4. Nuclear reactor
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Enrico Fermi built the first nuclear reactor (Chicago Pile-1) in 1942, achieving the first controlled nuclear chain reaction. While he worked on particle accelerators, the cyclotron was invented by Lawrence, the betatron by Kerst, and X-ray machines by Roentgen.

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