Multiple Choice
Star A and star B appear equally bright in the sky.Star A is twice as far away from Earth as star B.How do the luminosities of stars A and B compare?
A) Star A is twice as luminous as star B.
B) Star B is twice as luminous as star A.
C) Star A is four times as luminous as star B.
D) Star B is four times as luminous as star A.
E) Stars A and B have the same luminosity.
Correct Answer:
Verified
Correct Answer:
Verified
Q83: You record the spectrum of a star
Q84: Star C and star D have the
Q85: If the quantity of something entering a
Q86: In the figure below, which blackbody spectrum
Q87: If you observe the spectrum of an
Q89: Name four physical properties of an object
Q90: A spaceship is traveling toward Earth while
Q91: You are driving on the freeway when
Q92: What is the difference between visible light
Q93: When talking about a wave, what does