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Phy 202
Your 'question form' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** Question Form_labelMessages **
Missing lab material & discs
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Dr. Smith, I sent you an e-mail listing the items missing. I was also trying to arrange a meeting for this Friday if possible. If you see this question form before seeing my email pleas look at it for detail. Thank you.
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I've responded to your email. Let me know if you didn't get the response.
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Phy 202
Your 'question form' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** Question Form_labelMessages **
focusing light: angle of inced
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1. If a ray of light parallel to the central ray strikes the cylinder at a distance equal to 1/4 of the cylinder's radius then what is its angle of incidence on the cylinder?
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How do I find the angle of incidence without knowing the initial or final angle, then using Snell's Law. The angle of refraction I calculated was 1.2.
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The normal to the cylindrical surface at any point it a radial line, i.e., a line from the center of the circle to the point of incidence. You can use simple trigonometry to calculate its angle with the central axis. The incoming ray being parallel to the central axis, that gives you the angle of incidence.
I believe this situation in also addressed in the Class Notes.
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