On a scale of 1-10, how would you grade my answer below? This is my answer on a physic test today.?

Question

(Do you think my answer is correct 100%)?

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here goes my answer on a test today:
The sky is blue because of light diffraction , the nature of light and atoms and the biological and physiological aspects of the human eye .

Answer 1

Its true that the sky is blue because of diffraction, but this is because blue light is diffracted more than red - not neccessarily because of the human eye (which incidentally is tuned mainly for green light (the middle of the visible spectrum.)

I would give your answer 5 / 10 - as you haven't given the correct reason why the sky is blue.

Answer 2

To get much credit for your answer you would need to describe the nature of light and the nature of atoms in more detail to show understanding of how their properties affect diffraction. You would also need to demonstrate some understanding of what diffraction is. And how the properties of light affect its perceived colour. As it's a physics test, you could get away with less emphasis on the biological and physiological aspects of the human eye .

Nothing in your answer was wrong, so it's 100% in that sense, but if you had answered "Because of physics" you would also be 100% right, but not deserve any credit.

Answer 3

The blue of the sky is NOT caused by diffraction.

It is caused by scattering. This is an entirely different process, caused by reradiation of scatterer light from particles in the atmosphere. The blue is caused because the angle through which light scatters depends on the fourth power of its frequency - so blue light scatters much more.

The scattering is largely independent of the properties of individual atoms - the scattering occurs from particles not individual atoms.

The perception of blue obviously relies on the physiology of the eye to a small degree, but is mainly down to visual processing in the cortex.

So in most respects I'm afraid your answer is wrong.

Answer 4

depends on the details the question wanted. but if the question wanted why the sky is blue, you answered it nicely,lets 80%

Answer 5

No. It in no way tells us why the sky seems blue.

Answer 6

8 is fair. It's not a simple question.

Check: WHY IS THE SKY BLUE? by SCIENCE MADE SIMPLE

:)

Answer 7

I'd give you a 2. Partial credit. You're pretty much all wrong though.

Answer 8

6

Th