Optics Quiz

What happens when light travels from air into glass?

• It speeds up and bends away from the normal

• It slows down and bends towards the normal

• It continues in a straight line without bending

• It disappears

Which of the following is an example of a transparent material?

• Wood

• Glass

• Cardboard

• Brick

What is refraction?

• The bending of light when it passes from one medium to another

• The spreading of light into different colors

• The reflection of light off a mirror

• The absorption of light by a surface

Which of the following optical devices uses lenses?

• Plane mirror

• Microscope

• Periscope

• Polished metal sheet

What type of image does a plane mirror always produce?

• Real and inverted

• Virtual and upright

• Real and magnified

• Virtual and upside-down