Star A and star B have the same temperature, but star A is 5 times bigger than star B. Whichstatement below is correct?
A)Star A is redder and dimmer than star B.
B)Star A is bluer and dimmer than star B.
C)Star A is redder and brighter than star B.
D)Star A is bluer and brighter than star B.
E)Star A and star B have the same color, but star A is brighter.

Question

Quizplus · Accepted Answer

Since star A and star B have the same temperature, they emit light of the same color, which means their color is the same. The brightness of a star is determined by its size and temperature; since star A is 5 times bigger but has the same temperature as star B, it has a larger surface area to emit light from, making it brighter.

Star a and Star B Have the Same Temperature, but Star