Exploring Light Intensity Through Polarizers
Explore light intensity through linear polarizers at angles from 0° to 90°. Measure transmitted light with lOLab sensor, test repeatability with two trials per angle, and analyze results using Malus' Law.
Daniel Miller
Contributor
4.6
46
25 days ago
Preview (2 of 4)
Sign in to access the full document!
Physics 102 Lab 7
Introduction:
The goal of this lab is to explore the intensity of light that is transmitted through a pair of linear
polarizers as a function of the angle between the transmission axes. W e will measure this through
the lOLab device by utilizing the light feature and measuring ten evenly spaced angles between
03 to 90 3 for the transmission axes. By making two measurements for each angle, we will be able
to test the repeatability for both our angle and intensity measurements. An important concept
introduced in this lab is Mains' Law, as it helps us to study the light intensity of a
polarizer-analyzer relationship, which will be helpful in assessing the results of this experiment.
Methods:
1. Place tape on lOLab to create an elevated surface above the light sensor
2. Place the polarized filters directly on top of each other (no angle between)
3. Measure distance of bottom of flashlight to polarized filters (10cm)
4. Record data for 10 seconds using light sensor on lOLab
5. Repeat steps 2-4 for two trials
6. Move polarized filters so that they are at a 10° degree using a protractor
7. Measure distance of bottom of flashlight to polarized filters (10cm)
8. Record data for 10 seconds using light sensor on lOLab
9. Repeat steps 6-8 for two trials
10. Repeat steps 6-8 moving the polarized filter 1 0° more each time until you reach 90° and
recording data for two trials for each angle
Introduction:
The goal of this lab is to explore the intensity of light that is transmitted through a pair of linear
polarizers as a function of the angle between the transmission axes. W e will measure this through
the lOLab device by utilizing the light feature and measuring ten evenly spaced angles between
03 to 90 3 for the transmission axes. By making two measurements for each angle, we will be able
to test the repeatability for both our angle and intensity measurements. An important concept
introduced in this lab is Mains' Law, as it helps us to study the light intensity of a
polarizer-analyzer relationship, which will be helpful in assessing the results of this experiment.
Methods:
1. Place tape on lOLab to create an elevated surface above the light sensor
2. Place the polarized filters directly on top of each other (no angle between)
3. Measure distance of bottom of flashlight to polarized filters (10cm)
4. Record data for 10 seconds using light sensor on lOLab
5. Repeat steps 2-4 for two trials
6. Move polarized filters so that they are at a 10° degree using a protractor
7. Measure distance of bottom of flashlight to polarized filters (10cm)
8. Record data for 10 seconds using light sensor on lOLab
9. Repeat steps 6-8 for two trials
10. Repeat steps 6-8 moving the polarized filter 1 0° more each time until you reach 90° and
recording data for two trials for each angle
Preview Mode
Sign in to access the full document!
100%
Study Now!
XY-Copilot AI
Unlimited Access
Secure Payment
Instant Access
24/7 Support
Document Chat
Document Details
Subject
Physics