Question

Together, the cornea and the lens work to help us see. What is an important function of these two parts of your eye?












A) Together they refract light to help the eye focus.


B) Together they magnify the light that enters the eye.


C) Together they invert the image we see on the retina.


D) Together they control the amount of light that enters the eye.

Answer 1

I will give medals!

Answer 2

@Directrix Can you please help?

Answer 3

@dan815 Can you help?

Answer 4

@mathmale Could you explain and help me with this question?

Answer 5

@SolomonZelman Please help :( if you have the time, Its due soon.

Answer 6

I'm pretty sure it's D. Let me check.

Answer 7

Okay thank you, I wll be glad to fan and medal :)

Answer 8

Lenses refract light.

Answer 9

so that makes it A correct? @agent0smith

Answer 10

Which BEST explains why people see carrots as orange?












A) The carrots reflect only orange light.


B) The carrots absorb orange light from the Sun.
Eliminate

C) Orange light changes direction when it hits the carrots.


D) The carrots are opaque and do not allow orange light through.

Answer 11

Would it be b because it absorbs it? @agent0smith @alyssakin

Answer 12

If an object absorbs a particular colour, then you WON'T see that colour.

Answer 13

So that means it would be A because it reflects it?

Answer 14

Yes.

Answer 15

Assume the light wave directed at the paper is white light and the paper contains pigments that absorb the wavelengths of red-orange-yellow-blue-indigo-violet. What color will the paper appear to human eyes?












A) black


B) brown


C) green


D) white

Answer 16

@agent0smith Would it be white?

Answer 17

Use the same reasoning as my last post about colour.

Answer 18

So it would be white, correct?

Answer 19

If an object absorbs a particular colour, then you WON'T see that colour.

Which colours are not absorbed in this question?

Answer 20

Green?

Answer 21

Yes, and keep in mind "white" isn't really a particular colour of light. It's all the colours put together.

Answer 22

Charcoal appears black in color because it












A) emits black-colored light.


B) has a black-colored pigment.


C) absorbs all wavelengths of light that fall on it.


D) reflects all wavelengths of light that fall on it.


One more after this and them I will be able to make a hundred, I think this is c correct because if it absorbs it you cant see it, and you can't see black? Right?

Answer 23

Spot on.

Answer 24

Assume the light wave directed at the paper is white light and the paper reflects the wavelengths of red-orange-yellow-green-blue-indigo-violet. What color will the paper appear to human eyes?












A) black


B) brown


C) green


D) white


Last one! This is similar to the one I asked before so much sure you don't get confused like I did ;). Would this be green as well? Or white?

Answer 25

Notice it doesn't say "absorbs"...

Answer 26

:O So that makes it black because you can't see it.. right? Im a little confused.

Answer 27

You said in the last question "I think this is c correct because if it absorbs it you cant see it". What does this question tell you?

Answer 28

That the correct answer would be black? Right?

Answer 29

Answer my above question...

Answer 30

I am so confused :( Could you explain the correct answer for me? I don't understand.

Answer 31

What does this question tell you?

Answer 32

Understand what information the question gives you, before trying to answer it.

Answer 33

Oh its white because the wave lengths are being reflected. Thanks again for helping me, sorry if I seemed what some would call "a noob" I am new to openstudy as you can tell. I made sure to fan! ;)

Answer 34

Much better. I didn't even need to help you, I just made you actually read the question :P