What of the following distance methods is used to determine the distance to the most distant galaxies
A)radar echo
B)supernova observations
C)period-luminosity relationship of variable stars
D)parallax

Question

Quizplus · Accepted Answer

Supernova observations, specifically of Type Ia supernovae, are used to determine the distance to the most distant galaxies. These supernovae have a known luminosity, allowing astronomers to calculate their distance based on their apparent brightness.

What of the Following Distance Methods Is Used to Determine