5. Galaxies and Cosmology
Cosmic Microwave — Quiz
Test your understanding of cosmic microwave with 5 practice questions.
Practice Questions
Question 1
Which epoch in the early universe is directly associated with the emission of the Cosmic Microwave Background (CMB)?
Question 2
What is the primary form of energy that dominates the universe at the time of CMB emission?
Question 3
The angular scale of the first acoustic peak in the CMB power spectrum is primarily sensitive to which cosmological parameter?
Question 4
What is the main reason that the CMB photons were able to travel freely after the epoch of recombination?
Question 5
Which of the following describes the primary source of the small temperature fluctuations (anisotropies) observed in the CMB?