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| How can a shadow of an object not be formed ? Complete explanation on opaque, transparent and translucent objects. This physics animation (optics) software gives information about optical transparency and is useful for schools.
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Category : Science
Type : Animation
This file has animation on transparent, translucent and
opaque objects
- Why is the shadow of a transparent glass pane not visible
?
- What are translucent & opaque objects?
Explanatory notes section contains :
- Can a man become invisible ?
- An invisible man has to be blind !
- Why does a powdered glass becomes visible ?
- Are opaque things really opaque ?
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A transparent glass forms no shadow
on the ground
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A translucent glass casts a shadow
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An opaque object does not allow
the light rays to pass through it but a transparent object
is one which allow to pass the light rays through it. So trasparent
object like, glass can not cast a shadow.
Translucent objects partially obstructs and partially allow
light rays to mpass through them.
So a ground glass produces a lighter shadow.
Unclear about the concepts, please refer the animation below.
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| Q1: |
what is an opaque object |
jarne |
6/1/2008 |
| Ans: |
When light strikes an interface between two substances, some of the light is reflected, some is absorbed, and the rest is transmitted. An opaque substance transmits very little light, and therefore reflects or absorbs most of it. Example a mirror, wall and blackboard. Opacity is the state of being impenetrable to light. An opaque object is neither transparent (allowing all light to pass through) nor translucent (allowing some light to pass through). |
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