Unpolarized light:
A)contains electrons that are vibrating in many different planes
B)contains electrons that are vibrating in the same plane
C)cannot be polarized
D)creates glare
Please help me understand what and why the answer is.
2006-11-20 23:19:09 · 5 answers · asked by cult_king_666 1 in Science & Mathematics ➔ Physics
SHAME IT MOST BE TOUGH ON YOU, TRYING TO FIND POLARIZED LIGHT TO GET YOUR HEAD OUT OF YOUR ASSHOLE
2006-11-21 22:00:56 · answer #1 · answered by ALI G 3 · 0⤊ 0⤋
All of the choices are incorrect.
Light is an electoomagnetic wave - it contains no electrons. It consists of an electric field and a magnetic field that oscillate at 90 degrees to each other, and at 90 degrees to the direction of the light wave.
A linearlized polarized beam of light is one where the electric field only oscillates in one direction as the wave moves forward. And every part of the wavefront oscillates in the one direction. An unpolarized beam has a continuously and randomly varying direction for the oscillation of the electric field.
It is possible to create a polarized beam from an unpolarized one. You can do this using a "polarizer" which can be a sheet of plastc that absorbs light that oscillates in one direction (like polarized sun glasses) or using a variety of "crystal polarizers", or optical prism structures that work by reflecting one of the two linear polarization components.
Polarized light does not create glare. Glare is simply the reflection of light from a surface. If the surface is relatively flat and smooth the reflection will be highly directional and can be blinding. On the other hand, reflection can polarize light. When light falls on a surface at a steep angle one of the 2 linear polarizations will be more strongly reflected than that other. This is why polarizieed sunglasses work. They preferentially block strongly reflected light which is partially polarzied (for example from car windshields). So glare is simply a strong relection that, in many cases, happens to be polarized.
2006-11-21 10:59:38 · answer #2 · answered by amused_from_afar 4 · 0⤊ 0⤋
The light is just a vibration which vibrates in many direction, i.e; in many planes.
Hold a rope on side, pass it through a slit and tie it at the other end to some rigid body. Now try to produce waves by shaking ur hand in any direction. U can notice that the wave which has the same axis as the slit can only pass through it.. i.e; only a transverse wave can pass through a vertical slit.
Similarly , a plane polarised light can be produced by placing slit before the source. Thus the electromagnetic waves travels in only one plane.
2006-11-20 23:56:38 · answer #3 · answered by poornima_durairaj 2 · 0⤊ 0⤋
Light does not contain electrons so you can eliminate the first two options right away.
The correct answer is D. That is why people buy sunglasses with Polarized lenses. It cuts down on glare!
Here is an excellent diagram to help show you what it means when Light is polarized
http://www.gia.edu/images/image_library/506.gif
In fact, this article explains it better than I Can
http://www.gia.edu/research/1383/2282/article_detail.cfm
2006-11-21 01:12:55 · answer #4 · answered by Louis G 6 · 0⤊ 0⤋
A)contains electrons that are vibrating in many different planes
2015-10-15 23:35:16 · answer #5 · answered by Awilii Luka 1 · 0⤊ 0⤋