It is white in center. 3) Is there any decrease in intensity on either the right or left sides of the interference pattern? There is a decrease in both sides the farther from center you are. 4) If light behaves as waves and the two slits were generating coherent waves, then the white bands represent the regions where the waves add up to give interference (Hint: constructive or destructive). question 5) If light behaves as waves and the two slits were generating coherent waves, then the black bands represents the regions where the waves add up to give interference (Hint: constructive or destructive). B2-WNL 6