Diffraction
Chapter Name : Wave Optics |
Sub Topic Code : 101_12_10_06_04 |
Topic Name : Diffraction |
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Sub Topic Name : Resolving Power Of Optical Instruments |
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Introduction
Optics is the branch of physics which involves the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it.
Pre-Requisites:
Optics
Activity:
Surroundings.
Real Life Question:
What is magnification?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Magnification. | The ratio of the size of the image to the size of the object is called magnification. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Kapitsa–Dirac effect | The Kapitsa–Dirac effect causes beams of particles to diffract as the result of meeting a standing wave of light. Light can be used to position matter using various phenomena. |
Real life uses :
To have better optical instruments.
Places to visit :
Laboratory.
Practical examples around us
| Examples | Explainations |
|---|---|
| Human eye | Light entering the eye passes first through the cornea, which provides much of the eye's optical power. |
What you learn in Theory:
Quantity that characterizes the ability of optical instruments to produce separate images of two points of an object that are close to each other.
What you learn in Practice:
The limit of resolution of telescopes and optic tubes is expressed in seconds of arc.