Shadow Removal - Seminar The perception of cast shadow מרצה: ד"ר חגית הל-אור מגישה: שירה כהן.
Chapter 3 Propagation of Light. Formation of shadows The shadow cast by a point source of light The...
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Transcript of Chapter 3 Propagation of Light. Formation of shadows The shadow cast by a point source of light The...
![Page 1: Chapter 3 Propagation of Light. Formation of shadows The shadow cast by a point source of light The shadow cast by an extended source of light Eclipses.](https://reader036.fdocuments.us/reader036/viewer/2022082610/56649f445503460f94c6479e/html5/thumbnails/1.jpg)
Chapter 3
Propagation of Light
![Page 2: Chapter 3 Propagation of Light. Formation of shadows The shadow cast by a point source of light The shadow cast by an extended source of light Eclipses.](https://reader036.fdocuments.us/reader036/viewer/2022082610/56649f445503460f94c6479e/html5/thumbnails/2.jpg)
• Propagation of Light• Formation of shadows• The shadow cast by a point source of light• The shadow cast by an extended source of light• Eclipses• The colours in sunlight• The Pin hole cameraght is necessary for the growth
of plants
![Page 3: Chapter 3 Propagation of Light. Formation of shadows The shadow cast by a point source of light The shadow cast by an extended source of light Eclipses.](https://reader036.fdocuments.us/reader036/viewer/2022082610/56649f445503460f94c6479e/html5/thumbnails/3.jpg)
Propagation of Light
• Light travels in a straight line.This is called Propagation of Light.
• Activities
![Page 4: Chapter 3 Propagation of Light. Formation of shadows The shadow cast by a point source of light The shadow cast by an extended source of light Eclipses.](https://reader036.fdocuments.us/reader036/viewer/2022082610/56649f445503460f94c6479e/html5/thumbnails/4.jpg)
• Formation of shadows• The shadow cast by a point source of light• The shadow cast by an extended source of
light
![Page 5: Chapter 3 Propagation of Light. Formation of shadows The shadow cast by a point source of light The shadow cast by an extended source of light Eclipses.](https://reader036.fdocuments.us/reader036/viewer/2022082610/56649f445503460f94c6479e/html5/thumbnails/5.jpg)
• Eclipses• Solar eclipses-if
the moon comes between the sun and the earth and the three are in a straight line,the shadow of the moon falls on the earth,then solar eclipse takes place.
![Page 6: Chapter 3 Propagation of Light. Formation of shadows The shadow cast by a point source of light The shadow cast by an extended source of light Eclipses.](https://reader036.fdocuments.us/reader036/viewer/2022082610/56649f445503460f94c6479e/html5/thumbnails/6.jpg)
• Lunar eclipses-if the earth comes in between the sun and the moon,the shadow of the earthfalls on the moon,then lunar eclipse takes place.
![Page 7: Chapter 3 Propagation of Light. Formation of shadows The shadow cast by a point source of light The shadow cast by an extended source of light Eclipses.](https://reader036.fdocuments.us/reader036/viewer/2022082610/56649f445503460f94c6479e/html5/thumbnails/7.jpg)
• COLOURS IN SUNLIGHT
• Violet • Indigo• Blue• Green• Yellow• Orange• Red
![Page 8: Chapter 3 Propagation of Light. Formation of shadows The shadow cast by a point source of light The shadow cast by an extended source of light Eclipses.](https://reader036.fdocuments.us/reader036/viewer/2022082610/56649f445503460f94c6479e/html5/thumbnails/8.jpg)
• The pin hole camera
![Page 10: Chapter 3 Propagation of Light. Formation of shadows The shadow cast by a point source of light The shadow cast by an extended source of light Eclipses.](https://reader036.fdocuments.us/reader036/viewer/2022082610/56649f445503460f94c6479e/html5/thumbnails/10.jpg)
• QUESTION HOUR• 1Define linear propagation of light• 2Eclipses• 3Why does an object cast a shadow on a
screeen?• 4Give reason-The Penumbra is faint.• Define umbra and penumbra.