physicslover77 Group Title how do electric field lines look on a spherical wave front created by a point source of light? one year ago one year ago

1. Iamgmg90 Group Title

Can you phrase that a bit better please.

2. physicslover77 Group Title

|dw:1361889363650:dw| this is for a ray

3. physicslover77 Group Title

i.e. plane wave front can do the same for sperical wavefront

4. Iamgmg90 Group Title

I'm thinking huygens principle

5. physicslover77 Group Title

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6. Iamgmg90 Group Title

polarizing light?

7. Iamgmg90 Group Title

I haven't learnt about electric field lines produced by photons

8. physicslover77 Group Title

light is an electromagnetic wave, right?

9. physicslover77 Group Title

so i want to know what do electric field vectors look like for a spherical wave front

10. Iamgmg90 Group Title

ah okay, so the point source can be treated as the center of the sphere, and light is propagating in all directions away from this point? you want to know the electric field vectors it produces?

11. physicslover77 Group Title

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12. physicslover77 Group Title

yes

13. Iamgmg90 Group Title

max wells equations will sort you out

14. Iamgmg90 Group Title
15. Iamgmg90 Group Title

Maxwell's*

16. physicslover77 Group Title

how do i use them to solve this problem? can you solve this problem please

17. Iamgmg90 Group Title

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18. Iamgmg90 Group Title

intensity at surface of the sphere $I = \frac{ S }{ 4\pi r^2 }$ Each square follows the law so intensity will change at each one like, I ...I/4....I/9

19. Iamgmg90 Group Title

Same applied for electric field E, as $E = \frac{ Q }{ 4 \pi \epsilon_0 r^2 }$

20. Iamgmg90 Group Title

Where source strength would be $= \frac{ Q }{ \epsilon_0 }$

21. Iamgmg90 Group Title

If you want vectors, and the nature of light, you want to be looking into maxwells equations, and to understand them, grasp the concepts of vector calculus, curl, divergence, grad, laplacian

22. physicslover77 Group Title

ok, but how do the electric field vectors look like on a wavefront at particular time?|dw:1361890945224:dw|

23. UnkleRhaukus Group Title

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