This effect's namesake broadening applies to spectral lines, and another form of this effect was used to test special relativity in the Ives- Stilwell experiment—that form arises in special relativity and is called the transverse form.
This effect's namesake broadening applies to spectral lines, and another form of this effect was used to test special relativity in the Ives- Stilwell experiment—that form arises in special relativity and is called the transverse form. Other forms of this effect are (*) blue-shift and red-shift. In general, it is a change in the frequency of a wave due to the relative motions of the source and the observer. Name this effect most famously experienced when a siren or a train passes by a stationary observer.
This effect's namesake broadening applies to spectral lines, and another form of this effect was used to test special relativity in the Ives- Stilwell experiment—that form arises in special relativity and is called the transverse form.
{Doppler} effect/shift