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Who invented nuclear fission?

(a) Rutherford

(b) Hans Bethe

(c) Otto Hahn

(d) Marie Curie

The question was asked in a national level competition.

I'm obligated to ask this question of Nuclear Fission & Nuclear Fusion topic in portion Nuclear Power Plant of Energy Engineering

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The correct answer is (c) Otto Hahn

The best I can explain: Nuclear fission of heavy metals was discovered by German Otto Hahn on December 17, 1938 and was explained theoretically by Lise Meitner and her nephew Otto Robert Frisch on 1939. Frisch named Frisch names the process by analogy with biological fission of living cells.

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