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 · OscillationMedium · 45s
Consider a simple pendulum with length ll oscillating with small amplitude. Its time period is given by
TopicOscillation
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.
For a simple pendulum under small-angle approximation, T=2πlgT=2πgl.
Final Answer: Option A — T=2πlgT=2πgl