In the case of light,when a source is moving away,its light appears redder than it actually is.

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This phenomenon is called redshift, which occurs when the source of light moves away from the observer. As the light waves stretch out, they appear redder in color, resulting in a shift towards longer wavelengths. This is a key principle in studying celestial objects, such as stars and galaxies, as their redshift can provide information about their distance and velocity.

In the Case of Light,when a Source Is Moving Away,its