Properties of light
-
Upload
statefields-school-inc -
Category
Education
-
view
3.486 -
download
2
description
Transcript of Properties of light
![Page 1: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/1.jpg)
Light
Wave Properties of LightReflectionRefractionDiffractionInterference
![Page 2: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/2.jpg)
Reflection
Reflectionwhen a wave strikes an object and bounces off
![Page 3: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/3.jpg)
Reflection
incident ray reflected rayNormal
Surface
![Page 4: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/4.jpg)
Reflection
![Page 5: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/5.jpg)
Reflection
incident ray reflected rayNormal
Surface
![Page 6: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/6.jpg)
ReflectionNormal-line perpendicular to the
reflecting surface.Incident ray/incoming ray-the ray
that hits the barrier/surface.Angle of incidence-angle formed
by the incident ray with the normal.
![Page 7: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/7.jpg)
Reflection
Angle of reflection-angle formed by the reflected ray with the normal.
![Page 8: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/8.jpg)
Reflection
incident ray reflected rayNormal
Surface
![Page 9: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/9.jpg)
Reflection
Law of Reflectionthe angle of incidence equals the angle of reflection
The incident ray, reflected ray and the normal lie on the same plane
![Page 10: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/10.jpg)
Fiber OpticsTotal Internal Reflection
•when all light is reflected back into the denser medium
Refraction
![Page 11: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/11.jpg)
![Page 12: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/12.jpg)
Refraction
Refractionbending of waves when passing from one medium to another
![Page 13: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/13.jpg)
Refraction
Refractioncaused by a change in speed
•slower (more dense) refracted ray bends toward the normal
•faster (less dense) refracted ray bends away from the normal
![Page 14: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/14.jpg)
Refraction
SLOWER
![Page 15: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/15.jpg)
Refraction
FASTER
![Page 16: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/16.jpg)
![Page 17: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/17.jpg)
![Page 18: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/18.jpg)
![Page 19: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/19.jpg)
Refraction
Rainbowsrefraction-reflection-refraction
![Page 20: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/20.jpg)
![Page 21: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/21.jpg)
![Page 22: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/22.jpg)
Diffraction
Diffraction
bending of waves around a barrier
depends on the wavelength and size of the opening barrier.
![Page 23: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/23.jpg)
![Page 24: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/24.jpg)
Diffraction Gratingsglass or plastic made up of many tiny parallel slits
may also be reflectivespectroscopes, reflective rainbow stickers, CD surfaces
Diffraction
![Page 25: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/25.jpg)
![Page 26: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/26.jpg)
Interference
When two waves meets, they have an effect with each other.constructive when the crest of one wave meet the crest of the other one
![Page 27: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/27.jpg)
Interference
destructive when the crest of one wave meet the trough of the other wave
![Page 28: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/28.jpg)
Interference
constructive brighter lightdestructive dimmer light
![Page 29: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/29.jpg)
Interference
Thin Films - Bubbles & Oil Slicksinterference results from double reflection
![Page 30: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/30.jpg)
![Page 31: Properties of light](https://reader036.fdocuments.net/reader036/viewer/2022062307/555090e8b4c905a85c8b5114/html5/thumbnails/31.jpg)