# How does the angle at which a ray of light strikes a prism compare with the angle at

1. Mar 10, 2008

### zachcumer

Prism Entry and Exit

How does the angle at which a ray of light strikes a prism compare with the angle at which it passes out the other side?

I think its the same...?

Last edited: Mar 10, 2008
2. Mar 10, 2008

### Noone

I'm sure you can google that one :D i think it would be fast if your not sure
there are only a fixed amount of outcomes for the action of passing a light ray into a prism you could allways make a list of them then use logical thinking to find the % of the chance of each out come but its allways a gussing game with that i suggest a simple google search :D

3. Apr 1, 2008

### zachcumer

Hey could something help me. I think the answer to my question is the angle is the same, but not positive..

Thanks

4. Apr 1, 2008

### zachcumer

The angle of incidence is the same as the angle of reflection.

5. Apr 1, 2008

### dranseth

Note that the light is not being reflected, rather it is being refracted as it passes through the prism. Google what refraction is, and you should know the answer to your question.

6. Apr 1, 2008

### zachcumer

it bends downward or upward?

7. Apr 1, 2008

### dranseth

When light is passed through a prism, each of the different wavelengths that make up white light refract differently because their indices of refraction of are different. Hence when you pass white light through a prism it is separated into its colours.

8. Apr 1, 2008

### zachcumer

How does the angle at which a ray of light strikes a prism compare with the angle at which it passes out the other side?

This is what is needed to be answered. I believe that the angle that passes out the other side is refracted? ??

9. Apr 1, 2008

### dranseth

Exactly, after light passes through a prism, it deviates from its incident.

10. Apr 1, 2008

thank you!