Full-fat milk is made up of fat-free milk mixed with fat. A volume of 1.000 x 10-?mof full-fat milk has a mass of 1.035 kg. It contains 4.00% fat by
volume.
The density of fat-free milk is 1.040 × 108kg m-?
What is the density of fat?
А
B
1.25 x 10²kgm
9.15 x 102kg m-
9.28 x 102kg m
1.16 x 10° kgm
san
с
D

if they have a finite resultant

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.

answer(20) psi;