Solved UPSC CDS/OTA Question
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Q · Solar System medium · 45s
What is the approximate age of the universe?
TopicSolar System
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Current scientific measurements, including observations of the cosmic microwave background radiation and expansion rate of the universe, estimate its age to be about 13.8 billion years. This age indicates the time elapsed since the Big Bang, the event that led to the formation of the universe from a singularity into its current expansive state.
Final Answer: Option B - 13.8 billion years