An incandescent light (glowing tungsten filament) produces:
A) a continuous spectrum, with the peak giving the temperature of the filament.
B) an emission spectrum, with bright lines due to ionized tungsten.
C) an absorption spectrum, with dark lines due to the solid filament.
D) a continuum, with bright tungsten lines added.
E) a continuum, with dark lines of tungsten and argon as well.
Question 2
The Galactic Year is the time for our solar system to orbit the Galaxy; it is about:
A) 15 million years.
B) 225 million years.
C) 4.5 billion years.
D) 9.6 billion years.
E) 13.5 billion years.