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Old Apr 13th 2018, 02:08 PM   #1
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Refraction

I have to do these problems-

A red ray and a blue ray each pass from air into silica at an incident angle of 29.00°. How large is the angle between the two refracted rays? Red light has an index of refraction in silica of 1.459 and blue light has an index of 1.467.

A narrow ray of white light traveling in air enters a glass block at an incident angle of 40.00°. The white light consists of a range of wavelengths. For these colors, the indices of refraction for the glass range from 1.512 to 1.531. Find the angular width of the ray inside the block.

But I don't even know where to start with them, I know I have to use Snell's Law but I can't figure out how to go about these ones...could someone give me a push in the right direction? Thanks!
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Old Apr 13th 2018, 08:16 PM   #2
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n is the refractive index

First just deal with the red ray ...take the refractive index of air as 1 , you have all you need to find the angle in silica...

Do the same for the blue ray
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Old Apr 20th 2018, 09:51 AM   #3
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Originally Posted by oz93666 View Post


n is the refractive index

First just deal with the red ray ...take the refractive index of air as 1 , you have all you need to find the angle in silica...

Do the same for the blue ray
Thank you!!!!
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