The Big Bang, red-shift and the expanding Universe

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748
Question 7
Easy

Explain what is meant by the cosmological 'red-shift' observed in the spectra of distant galaxies.

[1]

The Big Bang, red-shift and the expanding Universe Questions

  1. GCSE
  2. /Physics
  3. /The Big Bang, red-shift and the expanding Universe