Author Question: An optic fiber is made of clear plastic with index of refraction of 1.50, surrounded by air. For ... (Read 102 times)

gonzo233 · **on:** Jul 29, 2018

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