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Angle of deviation and angle of incidence?

  • Thread starter DrMcDreamy
  • Start date
68
0
1. Homework Statement

This is a two part problem:

11) The index of refraction for violet light in silica flint glass is 1.66, and that for red light is 1.62.

attachment.php?attachmentid=32014&stc=1&d=1297118306.jpg


What is the angle of deviation for the red ray passing through a prism of apex angle 59.6◦ if the angle of incidence is 54.8◦? Answer in units of◦.

12) What is the angular dispersion of visible light with the same angle of incidence? Answer in units of◦.

2. Homework Equations

n1[tex]\theta[/tex]1=n2[tex]\theta[/tex]2

3. The Attempt at a Solution

My work:

attachment.php?attachmentid=32015&stc=1&d=1297118424.jpg


attachment.php?attachmentid=32017&stc=1&d=1297118618.jpg


Can you tell me if I did it right? TIA. Sorry for the bad pics & handwriting!
 

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Answers and Replies

68
0
Anybody?!
 
68
0
*BUMP* Anybody?!
 
gneill
Mentor
20,561
2,645
I think you've used the apex angle for the initial angle of incidence of the red ray.
 
68
0
I figured it out ^thanks
 

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