Intro to Optics

A student placed a pencil in a cup of water.  The pencil appears broken because light-

• always travels in a straight line

• bends when it passes through water

• makes the water in the glass evaporate

• reflects the pencil on the water's surface

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• Reflection
• Refraction

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Which figure represents the path light takes through a converging lens?

• 
• 
• 
• 

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Which optical device bends light inward?

• convex lens

• concave lens

• plane mirror

• convex mirror

Light bending as it passes through a raindrop is an example of (a)  

• Reflection

• Refraction

• Absorption

Tags

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What type of lens creates the image seen in the eyeglasses?

• convex

• concave

• reflection

• plane

A lens that is thicker in the middle than on the outside is called ___.

• diverging

• concave

• convex

• achromatic

A lens that is thinner in the middle than on the outside is called ___.

• diverging

• concave

• convex

• achromatic

Which technology CAPTURES and MAGNIFIES light?

• Telescope

• Microscope

• Camera

• All of them

Which optical technology do we use to observe small things?

• Telescope

• Microscope

• Camera

• ALL of them