If the prism spectrum of a source is a line spectrum,the grating spectrum would
A)have lines identical in intensity and position.
B)have lines identical in position but not in intensity.
C)be an absorption spectrum.
D)also be a line spectrum.
E)be a continuous spectrum.

Question

Quizplus · Accepted Answer

Both the prism and the grating create spectra by separating the different wavelengths of light emitted by a source, but the grating creates sharper and more precise lines. So, if the prism spectrum is a line spectrum, then the grating spectrum would also be a line spectrum, but the lines would be sharper and better defined. Thus, choice D is the best answer.

If the Prism Spectrum of a Source Is a Line