06 two silt spaced 0.450mm apart are placed 75 .0 cm from a screen. what is the distance between the second and third dark line of the interference pattern on the screen when the silt are illuminated with coherent light with a wave length of 500nm ​

the answer is b i think

a displacement distance is size of displ

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.