Index.of Jpg Sister Plane Reflection And Refraction?

Plane Reflection and Refraction? - index.of jpg sister

1.
Consider the figure below. What is the situation indicates where the image of the object is the observer?
Picture at this link: http://capa.fiu.edu/CAPA/brfigs/plane2.jpg

2.
The following figure shows a ray of light in a material of unknown refractive index of air (n = 1.00029). When the incident angle is 18.0 degrees and the angle of refraction is 12.0 degrees, which is the refractive index of the material, the second?
Image: http://capa.fiu.edu/CAPA/brfigs/refract4.jpg

3.
The following figure shows a ray of light from one material to another, then another. Given the relative angle of the light rays in the figure, which of the following best describes the relative size indices of refraction?
Image: http://capa.fiu.edu/CAPA/brfigs/plate2.jpg

A) n2> n3> n1
B) n2> n1> N3
C) N3> n1> n2
D) N1> N3 N2

4.
Consider a beam in a material with a refractive index of 1.33 incident on an interface with a material of unknown refractive index. You will notice that eand the critical angle is 55.80 degrees. What is the refractive index of the material of the second?