the colored part of the eye that controls the size of the pupil

Transparent jellylike fluid that fills the eye and refracts light.

Sends messages picked up by the retina to the brain

Hole passes different amounts of light

What does the optic nerve do?

transmit impulses from retina to brain

receives light and sends it to brain

What does the retina do?

receives light and sends it to brain

transmit impulses from retina to brain

What does the cornea do?

transmit impulses from retina to brain

receives light and sends it to brain

What does the pupil do?

regulates how much light enters the eye

What does the lens do?

regulates how much light enters the eye

What does the iris do?

regulates how much light enters the eye

Which of the following statements is true about the speeds of the various colors of light in glass?

red has the highest speed, violet the lowest

All colors of light have the same speed in glass.

violet has the highest speed, red the lowest

green has the highest speed, red and violet the lowest

red and violet have the highest speed, green the lowest

You are trying to catch fish by using a spear. You observe a large fish a couple of meters in front of you and a meter below the water surface. In order to hit the fish with your spear you must aim (assume that the fish is stationary and does not swim away in fright)

slightly below the point where you see the fish.

directly at the point where you see the fish.

slightly above the point where you see the fish.

slightly to the left side of the point where you see the fish.

slightly to the right side of the point where you see the fish.

The dependence of the index of refraction on wavelength is called dispersion. A beam of light (in air) containing red and blue light is incident at an angle of 35° on a glass plate that has an index of refraction of 1.64 for blue light and 1.61 for red light. By what percent does the speed of the red light exceed that of the blue light inside the glass, i.e. calculate (v(red)-v(blue) ) * 100 / v(red)?

The speed is the same for both colors.

Op tics 3

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111 questions

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MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is letter B

Optic nerve

Lens

Cornea

Retina

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is letter E?

Vitreous humor

Retina

Cornea

Optic nerve

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is letter F?

Retina

Pupil

Vitreous humor

Iris

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is letter G?

Sclera

Retina

Lens

Vitreous humor

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is letter H?

Cornea

Optic nerve

Iris

Retina

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is letter I?

Cornea

Lens

Vitreous humor

Optic nerve

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which part is #1?

sclera

cornea

retina

lens

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Op tics 3

What is letter B

What is letter E?

What is letter F?

What is letter G?

What is letter H?

What is letter I?

Which part is #1?

Which part is #2?

Which part is #3?

Which part is #4?

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