An optic fiber is made of clear plastic with index of refraction ...

[gonzo233]

An optic fiber is made of clear plastic with index of refraction of 1.50, surrounded by air. For what angles of incidence  will light remain within the plastic fiber?
 
  A)  < 38.3 B)  < 41.8 C)   21.1 D)  > 41.8 E)  > 38.3

Question 2

A point charge q = +1 C is located at the origin. What is the flux of the electric field of this charge through a square whose corners are (x, y, z) = (1, 1, 1), (-1, 1, 1), (-1, 1, -1), and (1, 1, -1)?
 
  A)
 
  11.3  104 Nm2/C
  B)
 
  0.5  104 Nm2/C
  C)
 
  0
  D)
 
  1.0  104 Nm2/C
  E)
 
  1.9  104 Nm2/C

[bulacsom]

Answer to Question 1

D

Answer to Question 2

E

[gonzo233]

Thanks for the timely response, appreciate it

[Mochi]

TYSM