Reflection and Refraction

Question 1

Which best describes reflection and refraction?

Revolt · Accepted Answer

In reflection, rays bounce off a boundary, and in refraction, rays pass through a boundary.

Question 2

Which formula represents Snell’s law?

Revolt · Accepted Answer

Answer image: https://r11.core.learn.edgenuity.com//media.edgenuity.com/evresources/795110e0d91f72d956f9315e7256f309.png

Question 3

A ray diagram is shown.

Revolt · Accepted Answer

The diagram shows refraction, and medium 1 is less dense than medium 2.

Question 4

Serena draws a diagram to compare what happens when rays hit a boundary and are either reflected or refracted.

Revolt · Accepted Answer

X: ray bounces off a boundary and maintains constant speed Y: ray changes direction Z: ray passes through a boundary and changes speed

Question 5

greater than 45 degrees eachless than 45 degrees eachequal in measuredifferent in measure

Revolt · Accepted Answer

equal in measure

Question 6

A ray of light strikes a smooth surface and is reflected. The angle of incidence is 35°.

Revolt · Accepted Answer

Rays will follow the law of reflection, so the angle of reflection will be 35°.

Question 7

Light strikes a smooth wooden tabletop.

Revolt · Accepted Answer

The light rays bounce off the table and move in different directions.

Question 8

speculardiffusestraightincident

Revolt · Accepted Answer

diffuse

Question 9

Kayla drew two ray diagrams to compare the behavior of light rays.

Revolt · Accepted Answer

Diagram X shows refraction from a denser to a less dense medium, and diagram Y shows reflection.

Question 10

An incident ray of light strikes water at an angle of 30°. The index of refraction of air is 1.0003, and the index of refraction of water is 1.33.

Revolt · Accepted Answer

22°

Reflection and Refraction Answers