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 · The Universe Medium · 45s
Consider the following about quasars: They are very luminous. They are found at great distances. They are active galactic nuclei. Which are correct?
TopicThe Universe
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.
All are correct. Quasars are extremely bright, distant objects powered by supermassive black holes.
Final Answer: Option D — 1, 2 and 3