question 1) (worth 6)

Describe Thomas Young's Double-Slit Experiment. Why was this experiment successful at demonstrating the interference of light whereas earlier attempts were unsuccessful? State the conclusions that Young made as a result of this experiment. Discuss the importance of the Double-Slit Experiment in describing the nature of light.

question 2) (worth 10)

The nature of light was a puzzle that physicists attempted to solve for many years. There were two main theories that were prominent in the 17th century. State these two theories and name two 17th century physicists that supported each theory. State the evidence in favour and against each theory. Which theory was more accepted by the scientific community by the early 1700s and why?