Suppose that monochromatic light is passed through a sheet of glass from air. As it travels through the glass, it is refracted. Which of the following parameters of the light does not remain the same?

Wave interference is __________ when the amplitudes of the waves add together to make a larger wave overall, while it is __________ when the amplitudes of the waves work against one another to make a smaller wave overall.

When light __________ interferes, the result is __________ light overall, and when light __________ interferes, the result is __________ light overall.