Question

what is the meaning of the phenomenon red shift??

Answer 1

redshift happens when light or other electromagnetic radiation from an object is increased in wavelength, or shifted to the red end of the spectrum. In general, whether or not the radiation is within the visible spectrum, "redder" means an increase in wavelength – equivalent to a lower frequency and a lower photon energy, in accordance with, respectively, the wave and quantum theories of light.

Answer 2

red shifting means it a phenomenon when something goes far with us a red spectrum of light is made this called red shifting.and when anyobject comes closer to us is called blue shifting this mostly occured and seen in big bodies like star black holes etc