Question

Who discovered the phenomenon of radioactivity?

A J.J. Thomson
B Wilhelm Röntgen
C Henri Becquerel
D Marie Curie
Practice Next

Hey! Ask a query

🎓
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
  • 200 Questions with Detailed Solutions
  • Section-wise Coverage (GA, English, Quant & Reasoning)