space medium True/False

The Hertzsprung-Russell diagram plots stars based on their luminosity versus surface temperature.

  1. True
  2. False

Answer: True

The H-R diagram is a fundamental tool in stellar astrophysics, classifying stars into main sequence, giants, supergiants, and white dwarfs based on absolute magnitude/luminosity vs. spectral class/temperature.

Topic Astronomy - Stars
Exam Relevance SSC General Science, UPSC Prelims