The sketch above shows groups of stars on the H- R diagram, labeled (a)through (e); note that (a)represents the entire main sequence while (c)and (d)represent only small parts of the main sequence. Which group represents stars of the largest radii?

Question

Quizplus · Accepted Answer

Group E represents stars of the largest radii because it corresponds to the area of the H-R (Hertzsprung-Russell) diagram where supergiants are located. These stars are significantly larger in radius than those on the main sequence or those in other categories such as white dwarfs or main sequence stars.

The Sketch Above Shows Groups of Stars on the H-