What is misconceptions in psychology?

Gee, I have no idea what question you have asked. But here is one between physicists and psychologists. What's the name of the color that is bluer than blue? A physicist will think of the ultraviolet catastrophe and respond,"violet." A psychologist has been trained to call "violet" the perceptual color that come from mixing blue and red, while calling the physicist's color "purple." Neat! They live in the same world; how would you know it?