Multiple choice

Italian born US physicist who produced the first controlled nuclear chain reaction.

  1. Ernico Fermi

  2. Alfred Nobel

  3. Joseph Lister

  4. Ivan Pavlov
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A Correct answer
Explanation

Enrico Fermi led the team that achieved the first controlled nuclear chain reaction at Chicago Pile-1 in 1942, marking the birth of the nuclear age. Alfred Nobel established the Nobel Prize, Lister pioneered antiseptic surgery, and Pavlov worked on classical conditioning.

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