Reflection and Refraction

What description of light is used in geometric optics?

Wave speed is __________ proportional to index of refraction.

The law of reflection states that the angle of incidence is ___________ the angle of reflection.

• greater than

• equal to

• less than

• inversely proportional to

Law of refraction is also known as ___________

How does a ray entering a material of smaller index of refraction bends?

• does not bend

• bends toward the normal

• bends away from the normal

• bends away from the interface

How does a ray entering a material of larger index of refraction bends?

• does not bend

• bends toward the normal

• bends away from the normal

• bends away from the interface

How does a ray oriented along the normal bends?

• does not bend

• bends toward the normal

• bends away from the normal

• bends away from the interface

What is the angle of reflection of a ray which angle of incidence is 20 degrees?