How was Hendrik Lorentz awarded the Nobel Prize?

Name: Hendrik Lorentz. 
Country: Netherlands.
Date of Birth: 18 July 1853.
Died: 4 February 1928.
The subject of Study: Lorentz–FitzGerald contraction, Lorentz transformations, Zeeman effect electromagnetic radiation.
Noble Prize Year: Nobel Prize for Physics in 1902 for their research on the discovery and theoretical explanation of the Zeeman effect.