Spectral lines shifted toward higher frequencies are called _____.
A) red shifted
B) blue shifted
C) lines cannot be shifted toward higher frequencies

Question

Quizplus · Accepted Answer

Spectral lines shifted toward higher frequencies are called blue shifted. This is because the Doppler effect causes the frequency of a wave to increase as the source of the wave moves towards the observer.

Spectral Lines Shifted Toward Higher Frequencies Are Called _____