Which of the following paraphrases Hubble Law?
1)The faster the galaxy spins, the more massive and luminous it is.
2)The greater the distance to a galaxy, the fainter it is.
3)The more distant a galaxy is, the younger it appears.
4)The older the galaxy appears to us, the more luminous it is.
5)The greater the distance to a galaxy, the greater its redshift.
