Final answer:
A study looking at how well humans can perceive different colors of light is sensation and perception psychology, while studying how different fluorescent bulbs affect productivity at work is industrial psychology.
Step-by-step explanation:
A study looking at how well humans can perceive different colors of light would be considered sensation and perception psychology. It falls under the branch of psychology that examines how our senses interpret and process information from the environment. Studying how different fluorescent bulbs affect productivity at work would be considered industrial psychology. This branch of psychology focuses on understanding individuals' behavior and thought processes in the workplace to improve productivity and well-being.