HW

E -- do as earlier listed

A -- Problems to try:

Light passes from air to a block of new stuff, with the angle going from 60 degrees outside the block to 35 degrees inside the block.  The angles are measured with respect to a normal (perpendicular) line.

a.  Draw this.
b.  Calculate the index of refraction of the stuff.

c.  Find the critical angle of this stuff.