.Light waves will bend when passing from one transparent substance to another unless:

a.

Constructive interference occurs

c.

Destructive interference occurs

b.

The light hits the substance at an angle of 60 degrees

d.

The light hits at an angle of 90 degrees

Question

.Light waves will bend when passing from one transparent substance to another unless:



a. 

Constructive interference occurs 

c. 

Destructive interference occurs 


b. 

The light hits the substance at an angle of 60 degrees 

d. 

The light hits at an angle of 90 degrees

anonymous · Answer

d. Check out page 3 of http://gammphysics.files.wordpress.com/2011/08/fall-2013-physics-text-with-solutions.pdf It says "Light always changes direction when moving from one transparent substance to another (unless the ray strikes the surface at a right angle)."