William Henry Bragg and his son, William Lawrence Bragg, jointly won the Nobel Prize in Physics in 1915 "for their services in the analysis of crystal structure."

Analyzing the other options:

Option 1: Max Planck - He was awarded the Nobel Prize in Physics in 1918, but not shared with his son. His contribution was for the discovery of energy quanta.

Option 2: Albert Einstein - He received the Nobel Prize in Physics in 1921 for his explanation of the photoelectric effect, but there was no shared prize with a son.

Option 4: Enrico Fermi - He was awarded the Nobel Prize in Physics in 1938 for his demonstrations of the existence of new radioactive elements produced by neutron irradiation, and for his related discovery of nuclear reactions brought about by slow neutrons. His prize also was not shared with a son.