Which statement best describes the relationship between an object's density and its index of refraction? as the optical density increases, the refractive index decreases. as the tendency of the atoms to absorb energy before reemitting it increases, the refractive index increases. as the mass per unit volume of the substance increases, the refractive index decreases. as the physical density of the substance increases, the refractive index increases.

as the tendency of the atoms to absorb energy before reemitting it increases, the refractive index increases.

Explanation:

The process of being absorbed and re-emitted by the atoms of the material decreases the speed of light from one end of the medium to the other. Therefore, the higher the absorption, the lower its speed in any medium with respect to the speed of light in a vacuum. The index of refraction indicates how slow the light in the material is compared to its speed in a vacuum. Thus, if the atoms absorb more energy before reemitting it increases, the refractive index increases

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6