Prostuti360°Prostuti360°
Log in

WBCS Preliminary Examination 2020 — General Studies · Question 124 of 200

Q124
General ScienceChemistry
Natural radioactivity was discovered by
  1. a.Marie Curie
  2. b.Ernest Rutherford
  3. c.Henri Becquerel
  4. d.Enrico Fermi

Answer: (C) Henri Becquerel

Henri Becquerel discovered natural radioactivity in 1896 while studying uranium salts; Marie and Pierre Curie later extended this work.

Q123 Whole paperQ125