Total Internal Reflection
Chapter Name : Ray Optics And Optical Instruments |
Sub Topic Code : 101_12_09_04_02 |
Topic Name : Total Internal Reflection |
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Sub Topic Name : Total Internal Reflection In Nature And Its Technological Application |
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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:
Optics
Activity:
A mirror.
Real Life Question:
What is reflection?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Reflection | Reflection is the change in direction of a wave front at an interface between two different media so that the wave front returns into the medium from which it originated. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Mirror | A mirror is an object that reflects light in a way that preserves much of its original quality subsequent to its contact with the mirror. |
Real life uses :
Vision.
Places to visit :
Bathroom.
Practical examples around us
| Examples | Explainations |
|---|---|
| A mirror | A mirror is an object that reflects light in a way that preserves much of its original quality subsequent to its contact with the mirror. |
What you learn in Theory:
Total internal reflection is the operating principle of automotive rain sensors, which control automatic windscreen/windshield wipers.
What you learn in Practice:
Another application of total internal reflection is the spatial filtering of light.