Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
Solve it the standard way once — then learn the shortcut.
Q · Modern PhysicsMedium · 45s
Who discovered the neutron? Option: 2
TopicModern Physics
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
James Chadwick discovered the neutron in 1932, which completed the basic understanding of atomic nucleus structure.
2
Final Answer: Option C — James Chadwick
2