unit 9 -- optical devices

Multiple Choice

What does a specular reflection create?

• Diffuse Reflection

• Refraction

• Images

• Magnification

Open Ended

Describe the 2 different surfaces that create specular and diffuse reflections.

Multiple Choice

What is an image?

• an illusion created by a lens

• a change in apparent size of an object

• the change in direction of light rays

Multiple Choice

What is the height of the image if m = < 1

• reduced in size

• magnified

• no magnification

Multiple Choice

What is the height of the image if m = 1 ?

• reduced in size

• magnified

• no magnification

Multiple Choice

Translucent glass ____ allow light to pass through it.

• does

• does not