Refraction
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Transcript of Refraction
![Page 1: Refraction](https://reader033.fdocuments.in/reader033/viewer/2022042814/55509031b4c9051e5b8b5087/html5/thumbnails/1.jpg)
Refraction
![Page 2: Refraction](https://reader033.fdocuments.in/reader033/viewer/2022042814/55509031b4c9051e5b8b5087/html5/thumbnails/2.jpg)
How do you make light bend?
When light rays enter a new medium they change in speed, causing them to bend or change direction.
![Page 3: Refraction](https://reader033.fdocuments.in/reader033/viewer/2022042814/55509031b4c9051e5b8b5087/html5/thumbnails/3.jpg)
What is refraction?
The bending of light as it enters a new medium Examples:
Air to water Water to air Water to glass
What is a medium? A material through which a wave (light) travels
![Page 4: Refraction](https://reader033.fdocuments.in/reader033/viewer/2022042814/55509031b4c9051e5b8b5087/html5/thumbnails/4.jpg)
Refraction can cause you…..
To see something that may not actually be there.
That is called an Image.
![Page 5: Refraction](https://reader033.fdocuments.in/reader033/viewer/2022042814/55509031b4c9051e5b8b5087/html5/thumbnails/5.jpg)
Refraction Animation
![Page 6: Refraction](https://reader033.fdocuments.in/reader033/viewer/2022042814/55509031b4c9051e5b8b5087/html5/thumbnails/6.jpg)
Figure 8…
Read the first paragraph on page 188 out loud.
![Page 7: Refraction](https://reader033.fdocuments.in/reader033/viewer/2022042814/55509031b4c9051e5b8b5087/html5/thumbnails/7.jpg)
What is the index of refraction?
How much a ray of light bends when it enters a new medium.
Liquids
Carbonated Beverages 1.34 - 1.356Cranberry Juice (25%) 1.351Honey 1.484Ice 1.309Oil, vegetable (50° C) 1.47Shampoo 1.362Water (0° C) 1.33346Water (100° C) 1.31766Water (20° C) 1.33283
![Page 8: Refraction](https://reader033.fdocuments.in/reader033/viewer/2022042814/55509031b4c9051e5b8b5087/html5/thumbnails/8.jpg)
Online Example
http://www.snoweria.com/flash/angle_of_refraction.html
![Page 9: Refraction](https://reader033.fdocuments.in/reader033/viewer/2022042814/55509031b4c9051e5b8b5087/html5/thumbnails/9.jpg)
What is white light?
All the colors on the visible spectrum
R
O
Y G
B I
V
![Page 10: Refraction](https://reader033.fdocuments.in/reader033/viewer/2022042814/55509031b4c9051e5b8b5087/html5/thumbnails/10.jpg)
Can it be separated?
You Bet!!!
Use a prism to separate light into it’s various wavelengths.
![Page 11: Refraction](https://reader033.fdocuments.in/reader033/viewer/2022042814/55509031b4c9051e5b8b5087/html5/thumbnails/11.jpg)
THINK: How does a rainbow occur?
White light from the sun enters a rain drop
The rain drop acts as a prism causing the white light to separate.
Displaying the visible spectrum.