Star A and star B have the same temperature, but different luminosities. What can you infer about these two stars?
A) Star A must be bigger.
B) Star B must be bigger.
C) Star A must be redder.
D) Star B must be redder.
E) Nothing can be inferred from the information given.
E
You might also like to view...
From Earth, the view of the Milky Way is a thin band of stars across the night sky. The part of the Milky Way galaxy that is described here is the:
A) bulge. B) spiral arm. C) disk. D) halo. E) globular cluster.
Main sequence stars lie at the top right corner of the H-R diagram
Indicate whether the statement is true or false
While the gondola is rising at a speed of 5.0 m/s, a passenger in a balloon-supported gondola throws a small ball up at a speed of 2.0 m/s relative to his body. A person who measures the ball's velocity at the instant of release will find that the ball's velocity relative to the ground at that instant is
a. 2.0 m/s, up. b. 2.8 m/s, down. c. 3.0 m/s, up. d. 5.0 m/s, up. e. 7.0 m/s, up.
The original nucleus and the final nucleus will be different isotopes of the same element for which decay scheme of the original nucleus?
a. alpha decay followed by two beta (electron) decays b. two gamma decays c. a beta (electron) decay followed by an alpha decay d. a beta (electron) decay followed by neutron emission