Hubble's Law and the Big Bang Theory
 

Hubble's Law and the Big Bang Theory problem 1


The figure below shows the wavelength distributions of electromagnetic radiation emitted by two stars A and B.




The lines in the figure have been corrected for redshift.


  • State what is meant by redshift.


  • Explain how cosmologists are able to determine that light from a distant star has undergone redshift.


 

main author and content editor: Ebenezer Famadewa