Why is a 1 solar-mass red giant more luminous than a 1 solar-mass main sequence star?

A) Fusion reactions are producing energy at a greater rate in the red giant.
B) The red giant's surface is hotter.
C) The red giant is more massive.
D) The red giant has a hotter core.


A

Physics & Space Science

You might also like to view...

In a spectroscopic binary, if a pair shows a combined set of lines tonight, but a maximum split two nights later, its orbital period must be

A) one day. B) two days. C) four days. D) eight days. E) twelve days.

Physics & Space Science

What is meant by an ideal or perfect gas?

What will be an ideal response?

Physics & Space Science

As you know, the earth has an orbital period of 1.0 year at an orbital radius of 1.0 AU (astronomical unit, the average distance between the earth and the sun)

If a new "minor planet" were to be found in a circular orbit with radius 13 AU, what would be its orbital period?

Physics & Space Science

When you look into a pool of water, the depth looks less than it actually is because of __________

Fill in the blank(s) with correct word

Physics & Space Science