1. Which experiment convinced a scientist that, on the other hand, light also consists of particles? Briefly describe the experiment and explain how it confirmed key theoretical predictions that were based on the existence of particles of light. Who made the predictions?
2. Can this type of experiment be performed with systems other than light? Briefly explain at least one example with the help of a simple figure. Name at least one scientist involved in the experiment you picked.
3. Which 19th century experiment convinced the scientific community that light is a wave? Who performed it? Briefly explain the principle of the experiment with the help of a simple figure.