space medium MCQ

The Hubble Constant measures which property of the universe?

  1. Age
  2. Expansion rate
  3. Temperature
  4. Density

Answer: Expansion rate

The Hubble Constant (H₀ ≈ 70 km/s/Mpc) quantifies the current expansion rate of the universe, relating galaxy recession velocity to distance.

Topic Astronomy - Universe
Exam Relevance SSC CGL, UPSC Prelims
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