What Will Be the Intrinsic Brightness or Luminosity of a White

Multiple Choice

What will be the intrinsic brightness or luminosity of a white dwarf star that has the same temperature as the Sun? (See Figure 10-7,Comins,Discovering the Universe,6th ed.)

A) 4 times the Sun's luminosity
B) Because it has the same surface temperature, the white dwarf will have the same brightness.
C) 10-² of the Sun's luminosity
D) 10-⁴ of the Sun's luminosity