GEOMETRICAL OPTICS
Materials:
- miniature light bulb
- battery or power supply
- holder for light bulb
- meter stick
- laser
- face powder
- ruler (transparent)
- small paper disk
- graph paper
- glass rod
- semicircular transparent chamber (filled with a slightly cloudy liquid)
- pencil
- protractor
- flashlight with narrow slit
- prism
- solid clear cylinder
Pictures:
Results:
First Activity
The light that comes from the light bulb spreads out while the laser did not.
Second Activity
When the parallel light is incident to the surface between two materials ( transparent ) its light was both refracted and reflected.
Third Activity
When a red laser light is incident to a prism, its refracted light is still a red light but if a white light is incident to a prism, its refracted light is a rainbow (composed of Red, Orange, Yellow, Green, Blue, Indigo and Violet).
First Activity
The light that comes from the light bulb spreads out while the laser did not.
Second Activity
When the parallel light is incident to the surface between two materials ( transparent ) its light was both refracted and reflected.
Third Activity
When a red laser light is incident to a prism, its refracted light is still a red light but if a white light is incident to a prism, its refracted light is a rainbow (composed of Red, Orange, Yellow, Green, Blue, Indigo and Violet).
Discussions:
First Activity
The light that comes from the light bulb spread because the light bulb is emitted without any pattern or any specific direction while the laser did not spread because it is organized or it follows a certain path.
Second Activity
The light was both reflected ad refracted because of its medium that hits the flat plane which is transparent. The light reflected because it is a flat plane, and the light refracted because it was transparent. Based on the Snell’s Law of Refraction it was stated that there is a relationship between then angle of incidence and the angle of refraction. Based on the Law of Reflection it was stated that the angle of incident ray is equal to the angle of the ray that was reflected.
Third Activity
When the white light was incident to a prism, a rainbow appeared. This happened because white light is a combination of light of many different wavelengths. It was refracted slightly and was separated into seven individual beams of colored light. ( red, orange, yellow, green, blue, indigo and violet.)
First Activity
The light that comes from the light bulb spread because the light bulb is emitted without any pattern or any specific direction while the laser did not spread because it is organized or it follows a certain path.
Second Activity
The light was both reflected ad refracted because of its medium that hits the flat plane which is transparent. The light reflected because it is a flat plane, and the light refracted because it was transparent. Based on the Snell’s Law of Refraction it was stated that there is a relationship between then angle of incidence and the angle of refraction. Based on the Law of Reflection it was stated that the angle of incident ray is equal to the angle of the ray that was reflected.
Third Activity
When the white light was incident to a prism, a rainbow appeared. This happened because white light is a combination of light of many different wavelengths. It was refracted slightly and was separated into seven individual beams of colored light. ( red, orange, yellow, green, blue, indigo and violet.)
Conclusions:
Geometrical optics ray optics, describes light propagation in terms of "rays". The "ray" in geometric optics is an abstraction, or "instrument", which can be used to approximately model how light propagate.
Geometrical optics ray optics, describes light propagation in terms of "rays". The "ray" in geometric optics is an abstraction, or "instrument", which can be used to approximately model how light propagate.
Sources:
http://www.math.ubc.ca/~cass/courses/m309-01a/chu/Fundamentals/snell.htm
http://www.physicsclassroom.com/class/refln/Lesson-1/The-Law-of-Reflection
http://curiosity.discovery.com/question/laser-light-differ-ordinary-light
http://en.wikipedia.org/wiki/Geometrical_optics
http://www.math.ubc.ca/~cass/courses/m309-01a/chu/Fundamentals/snell.htm
http://www.physicsclassroom.com/class/refln/Lesson-1/The-Law-of-Reflection
http://curiosity.discovery.com/question/laser-light-differ-ordinary-light
http://en.wikipedia.org/wiki/Geometrical_optics