The star named Sheat is of M2 II spectral type and luminosity ...

[go.lag]

The star named Sheat is of M2 II spectral type and luminosity class. Based on this information, which of the following are true? I. Sheat has a surface temperature less than the Sun. II. Sheat has a diameter that is greater than that of the Sun. III. Sheat is more luminous than the Sun. IV. Sheat is located near the upper left-hand corner in the H-R diagram.
 
  a. I & II
  b. II & IV
  c. II, III, & IV
  d. I, II, & III
  e. I, II, III, & IV

Question 2

_________ is absorbed by water in Earth's atmosphere and requires that telescopes for observing at these wavelengths be placed on mountain tops or in space.
 
  a. Infrared radiation
  b. Ultraviolet radiation
  c. Radio wave radiation
  d. X-ray radiation
  e. Visible light

[1_Step_At_ATime]

Answer to Question 1

d

Answer to Question 2

a

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