Several people won it; one every year since the Noble prizes started, sometimes more than one (i.e., the price was shared among two or three people).
Never. Albert Einstein won the Nobel Prize in physics in 1921 for his work on the photoelectric effect.
Gabriel Lippmann won a Nobel prize in 1908 in Physics
Paul Ehrlich won The Nobel Prize in Physiology or Medicine in 1908.
Johannes Stark won The Nobel Prize in Physics in 1920.
James Chadwick won The Nobel Prize in Physics in 1936.
Isidor Isaac Rabi won The Nobel Prize in Physics in 1944.
Marie Curie won the Nobel prize in both physics and chemistry.
Polykarp Kusch won The Nobel Prize in Physics in 1955.
Robert Hofstadter won The Nobel Prize in Physics in 1961.
Alfred Kastler won The Nobel Prize in Physics in 1966.
John Bardeen won The Nobel Prize in Physics in 1972.
Antony Hewish won The Nobel Prize in Physics in 1974.
Burton Richter won The Nobel Prize in Physics in 1976.
Carlo Rubbia won The Nobel Prize in Physics in 1984.
Ernst Ruska won The Nobel Prize in Physics in 1986.
Georges Charpak won The Nobel Prize in Physics in 1992.
Frederick Reines won The Nobel Prize in Physics in 1995.