Physics · Cosmology and Astrophysics
What does Cosmic Microwave Background Radiation (CMBR) refer to?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Thermal radiation leftover from the Big Bang that permeates the entire universe✓
- 2Cosmic radiation emitted directly by the Sun and nearby celestial bodies
- 3Radiation emitted exclusively by the heaviest stars in the galaxy
- 4Electromagnetic radiation emitted by stars in the microwave frequency range
Correct answer
Thermal radiation leftover from the Big Bang that permeates the entire universe
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