Week 25 polarized light lab
Lab Report Name: ____________________
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Polarized Light
Part 2 – Crossed Polarizers – Quantitative:
DATA TABLE:
|
Degrees |
Resistance |
Light intensity (1/R) |
|
0 |
|
|
|
15 |
|
|
|
30 |
|
|
|
45 |
|
|
|
60 |
|
|
|
75 |
|
|
|
90 |
|
|
|
105 |
|
|
|
120 |
|
|
|
135 |
|
|
|
150 |
|
|
|
165 |
|
|
|
180 |
|
|
|
195 |
|
|
|
210 |
|
|
|
225 |
|
|
|
240 |
|
|
|
255 |
|
|
|
270 |
|
|
|
285 |
|
|
|
300 |
|
|
|
315 |
|
|
|
330 |
|
|
|
345 |
|
|
|
360 |
|
|
Graph light intensity, 1/R vs. angle between polarization axes. Note that the light intensity indicator 1/R is an arbitrary unit. If we had a true light intensity meter our light intensity units would be in “lux”.
Question:
If you buy polarizing sunglasses how can you be sure they are truly polarized?
