Author Question: The critical angle is least in A) glass. B) water. C) diamond. D) ... (Read 17 times)

BRWH · **on:** Jul 29, 2018

The critical angle is least in

A) glass.
B) water.
C) diamond.
D) vacuum.

Question 2

If you view a rainbow out your window while riding in a train, you'll see that

A) the rainbow can only be seen while you're moving slowly or at rest.
B) the rainbow moves along with you.
C) you soon pass by it, leaving it where you first saw it.