The index of refraction of quartz is anisotropic. Suppose that visible light is passing from one grain to another of different crystallographic orientation and at normal incidence to the grain boundary. Calculate the reflectivity at the boundary if the indices of refraction for the two grains are 1.544 and 1.553.

The reflectivity at the boundary of the two grains is ×

Step-by-step explanation:

Given :

Refractive index of one grains () = 1.553

Refractive index of second grains () = 1.544

According to the fresnel equation,

∴ general equation of refraction ( reflectivity )

where = incident angle, = transmitted angle

but for normal incidence °

so our equation become,

⇒  

     ×

Therefor reflectivity at the boundary is given by ×.

answer: 1inch=7days  

12inch=12*7=84days

step-by-step explanation:

answer: it actually depends on which is the independent variable and which is the dependent variable. let us say we're looking at a linear equation. y=2x+3. we theoretically could switch the equation to be x=(y-3)/2 and it would be the same line. so either a causes b or it can be that b causes a. so technically the answer is false

step-by-step explanation: