Agrating with 600 lines/mm is placed in a monochromator, with exit slits which are 75 cm away. what is the spectral width of the exit slits if they are physically 5 micrometers wide? 100 micrometers wide?

potential energy is directly proportional to height.

more height = more potential energy.

greatest increase in height = greatest increase in potential energy

where are the points with the greatest increase in height ?

has to be c-e or d-e .