Author Question: From the mass-luminosity relation, a 2-solar-mass star on the main sequence would have a luminosity ... (Read 34 times)

bucstennis@aim.com · **on:** Jul 27, 2018

From the mass-luminosity relation, a 2-solar-mass star on the main sequence would have a luminosity of approximately ____ solar luminosities.

a. 2
b. 4
c. 11
d. 0.5
e. 0.25

Question 2

What statement below best describes the refraction of light?

a. The absorption of light as it travels through a dense, transparent material.
b. The spreading out of white light according to wavelength.
c. The change in direction of a light ray as it passes to a medium of different optical density.
d. The change in direction of a ray of light as it reflects off a surface.