Author Question: Red giant stars are I. more luminous than the Sun. II. larger in diameter than the Sun. III. cooler ... (Read 52 times)

09madisonrousseau09 · **on:** Jul 27, 2018

Red giant stars are I. more luminous than the Sun. II. larger in diameter than the Sun. III. cooler than B stars. IV. located above the main-sequence stars in the H-R diagram.

a. I & II
b. II & IV
c. I, II, & IV
d. II, III, & IV
e. I, II, III, & IV

Question 2

Which of the following types of electromagnetic radiation has the smallest frequency?

a. X-rays
b. visible light
c. radio
d. gamma rays
e. infrared radiation