Quasars have what kind of spectral lines?
Quasars have all kinds of spectral lines namely more energetic ones which makes them the brightest objects in the night sky.
Does the velocity of a star toward or away from earth determine measuring the shift of its spectral lines?
Is spectral interference more common in atomic emission spectroscopy or atomic absorption spectroscopy?
Firstly spectral lines means the spectrum the band of 7 colors. The spectral lines are formed because when the light passes through tough medium it passes through the medium but the white light gets disintegrated into seven colors . The band includes the colors violet, indigo, blue, green ,yellow orange , red.