Spherical Mirrors & Index of Refraction
Blackboard Notes
Note to Jeff: Skip experiment purpose- need the blackboard space!
Draw the fourth section first!
During Spring 2023, the notation used in the current text changed from p and q to s and s'. Hopefully I have checked ahead of time and made appropriate adjustments to the instructions
======================= Photo - Click for a Larger Version =============================
- Note that I have a typo in my photo of the blackboard notes! n = c/v, NOT v/c! Guess I need a new photo in 2024
======================= First Board Section =============================
One set of maps per group (but each person writes their own journal!)
Plane Mirror (Not Used Today!):
======================= Second Board Section =============================
Spherical mirror:
- r = 2f
- F = Focal point
- C = Center of circle
======================= Third Board Section =============================
Location of image: Concave mirror
Location of image: Convex mirror
======================= Fourth Board Section =============================
Refraction: Snell's Law
n1 sinθ1 = n2 sinθ2
where n = c/v
(c = s.o.l. in vacuum; v = s.o.l. in material)
Index of refraction:
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- {Text not necessary} Ray traveling from lower to higher n; refracted ray bends towards Normal. Travel from higher to lower n, refracted ray bends away.
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Critical angle: Total internal reflection beyond this angle
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- {Text not necessary} Ray traveling from higher to lower n; there
is some critical angle of incidence (θ1)
where θ2 = 90°. At greater angles: Total
internal reflection
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Return to Setup
| Revised:
07 Apr 23
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Canton, NY 13617
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