Multiple Choice
An astronomer observes two stars of the same surface temperature, but one has twice the diameter of the other. How many times larger is the luminosity from the larger star compared with that from the smaller star?
A) 2
B) 4
C) 16
D) They are the same.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q213: Suppose that a particular sample of wood
Q214: An astronomer plots the intensity of the
Q215: The average temperature of Mars is less
Q216: An astronomer begins with an object
Q217: The light from a small amount of
Q218: Atoms of hot hydrogen gas will emit
Q219: The star P Cygni (in the constellation
Q220: By what factor does the total energy
Q222: If one wants to design a device
Q223: What is the difference between "luminosity" and