I want to know the answer to the following question:
Who received the Nobel Prize in 1921 for his work on the photoelectric effect?
All the background I'm provided with is that "The Nobel committee awarded the prize for his work on the photo-electric effect, rather than relativity, both because of a bias against purely theoretical physics not grounded in discovery or experiment, and dissent amongst its members as to the actual proof that relativity was real.". Is that enough to answer the question?