Refraction Of Light
Chapter Name : Light-Reflection And Refraction |
Sub Topic Code : 101_10_10_03_05 |
Topic Name : Refraction Of Light |
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Sub Topic Name : Image Formation By Lenses |
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Introduction
Recall Convex and Concave Lenses
Pre-Requisites:
Light, Reflection, Refraction, Lenses
Activity:
Spectacles works on this idea.
Real Life Question:
How do spectacles and contact lenses work
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Real Image | Image can be seen on a screen |
| Virtual Image | Image cannot be caputerd on a screen |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Experimental Set Up | A lab can be set up to investigate the image formation by lenses |
Real life uses :
Magnify an object, View an object better
Places to visit :
Opticians Office, manufacturer of eyeglasses or contact lenes
Practical examples around us
| Examples | Explainations |
|---|---|
| Telescope. Eyeglasses, Contact Lenses, Binoculars, Microscope | All are gadgets working on this idea. |
What you learn in Theory:
The formation of images by convex and concave lenses
What you learn in Practice:
Where this idea/principal is applied, to manufacture products