Answer
See answers.
Work Step by Step
a. A hot solid object produces a continuous spectrum (as stated and explained in Section 27-11).
b. An excited, rarefied gas produces a line spectrum. It is an emission spectrum.
c. A hot liquid produces a continuous spectrum (as stated and explained in Section 27-11).
d. Light from a hot solid (which forms a continuous spectrum) that passes through a cooler rarefied gas produces a line spectrum. It is an absorption spectrum.
e. A hot dense gas produces a continuous spectrum with some absorption lines that are present (e.g., the spectrum of the sun, shown in Figure 27-23.)
