Quiz on Refraction in the Eye

What occurs in the eye when the rays are focused onto the retina?

• Extra diffraction

• Extra absorption

• Extra refraction

• Extra reflection

How can long sight be corrected?

• Using a mirror

• Using a converging lens

• Using a diverging lens

• Using a prism

Where are the rays of light focused in long sight?

• In front of the retina

• On the retina

• Behind the retina

• Outside the eye

What causes the rays to be focused onto the retina in corrected long sight?

• Extra refraction

• Extra absorption

• Extra diffraction

• Extra reflection

Where does refraction occur as light enters and leaves the eye?

• Only at the retina

• Only at the lens

• At multiple points

• Only at the air/cornea boundary

What type of lens is used to correct short sight?

• Prism

• Diverging lens

• Converging lens

• Mirror

What can individuals with long sight see clearly?

• Nearby objects

• No objects

• Both nearby and distant objects

• Distant objects

What cannot make the lens thick enough to focus on nearby objects in long sight?

• Retina

• Iris

• Cornea

• Muscles connected to the lens