Author Question: Before light can undergo total internal reflection when incident on material 1 from material 2, what ... (Read 54 times)

bucstennis@aim.com · **on:** Jul 28, 2018

Before light can undergo total internal reflection when incident on material 1 from material 2, what must be true of the indices of refraction?
a. n1 = n2
c. n1 < n2
b. Either n1 or n2 must be equal to 1.
d. n1 > n2

Question 2

The use of fiberglass insulation in the outer walls of a building is intended to minimize heat transfer through the wall by what process?
a. conduction
c. convection
b. radiation
d. vaporization