Question

Match the following:

	Column I		Column II
1.	r > 90	a.	Light gazes at the surface of separation between the two modes.
2.	r = 90	b.	No refraction.
3.	r < 90	c.	Refracted ray away from the normal

Answer 1

	Column  I		Answer
1.	r > 90	b.	No refraction.
2.	r = 90	a.	Light gazes at the surface of separation between the two modes.
3.	r < 90	c.	Refracted ray away from the normal