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UPSC Combined Geo-Scientist

Chemist

  • 2 objective papers
  • 120 questions each
  • 2 h per paper
  • 100 + 300 marks

Prelims Paper I covers general studies.

UPSC Combined Geo-Scientist, Prelims · 2023 · Paper I, General Studies · Q19 of 120

Geo-Scientist Prelims 2023 General Studies Q19: The phenomenon of radioactivity was first discovered by

QuestionNuclear physics / history

The phenomenon of radioactivity was first discovered by

  1. (a) Marie Curie
  2. (b) Henri Becquerel
  3. (c) Frederick Soddy
  4. (d) Ernest Rutherford

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