# Homework Help: Huygens described light as a wave

1. Nov 29, 2007

### pinkyjoshi65

Ok, so Huygens described light as a wave. So my question is how does his wave theory explain the phenonmenon of dispersion? What happens when a wave of light hits a prism? How does while light split into the different colours os a rainbow?

Also another question I have is about Maxwell's discription of light. The maxwell equations comprised of 4 imporant points:1) number of field lines is proportional to the charge,2) number of field lines leaving an about is 0,3) changing a charge induces a new magnetic field and 4) changing a magnetic field induces a new charge.

my question is what feature of electromagnetic waves do polaroid sunglasses take advantage of? I mean how do polaroid lenses work in terms of electromagnetic waves?

2. Nov 29, 2007

### DaveC426913

They take advantage of the polarization of the EM wave.

3. Nov 29, 2007

4. Dec 1, 2007

hello?

5. Dec 1, 2007

### DaveC426913

Sorry, I'm not the expert here. I was hoping maybe that you just missed the fact that light does have a polarizing property (its wave is oriented along a particular axis). For a more in-depth explanation, you'll have to wait for the heavy-lifters around here to weigh in.

6. Dec 2, 2007

### pinkyjoshi65

umm k thnkz anyway..Anyone else know the answer?

7. Dec 2, 2007

### hage567

Have you tried to research this on your own yet? Look up polarization on your own to see if you can get the answer.

8. Dec 2, 2007

### pinkyjoshi65

I did search on the net. Didn't use the word "polarization". Will try that. what about the 1st part of the question?

9. Dec 2, 2007

### pinkyjoshi65

hellllooooooo