Polarization
Chapter Name : Wave Optics |
Sub Topic Code : 101_12_10_07_02 |
Topic Name : Polarization |
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Sub Topic Name : Polarization By Scattering |
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Introduction
Optics is the branch of physics which involves the behavior and properties of light, including its interactions with matter and the construction of instruments that use or detect it.
Pre-Requisites:
Polarization
Activity:
Polarised camera.
Real Life Question:
What is Polarization?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Polarization | A property of waves that can oscillate with more than one orientation. Electromagnetic waves, such as light, and gravitational waves exhibit polarization; sound waves in a gas or liquid do not have polarization because the medium vibrates only along the direction in which the waves are travelling. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Polarization Maintaining (PM) Fiber | A specialty fiber called the Polarization Maintaining (PM) Fiber intentionally creates consistent birefringence pattern along its length, prohibiting coupling between the two orthogonal polarization directions. |
Real life uses :
Camera.
Places to visit :
Photo studio.
Practical examples around us
| Examples | Explainations |
|---|---|
| Polarimeter | The polarization of light can be measured with a polarimeter. |
What you learn in Theory:
It’s because the molecules scatter light at the blue end of the visible spectrum much more than light at the red end of the visible spectrum.
What you learn in Practice:
Unpolarized light passing through a fluid is scattered; the scattered light being partially or completely plane polarized.