Question

taveling of electromagntic waves

Answer 1

please see the attachment

Answer 2

light

Answer 3

light is electromagnetic wave

Answer 4

yeah, couple em waves osscilation is calld light

Answer 5

@waqassaddique, some interesting facts raised by you but unfortunately they are incorrect:
You must read this. They are exactly made to counter your midconceptions
http://en.wikipedia.org/wiki/Electromagnetic_wave#Wave_model

Answer 6

*misconceptions

Answer 7

i am wrong???

Answer 8

change in electric field generates magnetic field
and change in magnetic field generates electric field simultaneously

Answer 9

Nope :) Let me explain. Basically what @waqassaddique is stating is about near field. (like close to antennas) That is where his ideas are right. But light and other em waves are far field. So basically, they follow different principles by the maxwell's equations.

You can have a look at near field and far field of EM wave
http://en.wikipedia.org/wiki/Near_and_far_field

Answer 10

That Nope:0 is for @adnanSultan question. @experimentX is right(for far field em wave )

Answer 11

ok

Answer 12

so point to ponder is, basically near ocilating charge both fields are out of phase and in far end they turn to be in phase... so how this out of phase to in phase thing happen?@Shivam_bhalla

Answer 13

@shivam_bhalla

Answer 14

@waqassaddique
http://en.wikipedia.org/wiki/Near_and_far_field
See here for your answer

Answer 15

thankx @shivam_bhalla

Answer 16

Welcome @waqassaddique

Answer 17

electromagnetic waves travel with the speed 3*10^8 m/s
In electromagnetic wave, the electric and the magnetic fields are always perpendicular to the direction of propagation of the wave. The energy of the electromagnetic wave is mainly carried by the electric field.
The direction of propagation of the electromagnetic wave is found by poynting vector. These waves are not deflected by electric or magnetic fields. They travel in vacuum and in the material medium also. Osciilating dipole gives rise to electromagnetic waves. The electromagnetic waves can be polarised also and the direction of the polarisation is given with reference to the direction of the electric field vector

Answer 18

@krishnakumar123 ..... thanks for adding up and somethghing interesting i came to know that electromagnetic waves are not affeccted by magnetic field but how is this possible? Can you give any reason for that?

Answer 19

hi waqassaddique
light is an electromagnetic wave. It is not affected by magnetic fields.......

Answer 20

yes thats what came to my mind that light is electromagnetic wave but it is not affected by magnetic field but how its possible what is the theory behind that?

Answer 21

@shivam_bhalla ... can you put some light at this issue?

Answer 22

@waqassaddique, Let this answer put some light on this topic
http://answers.yahoo.com/question/index?qid=20080723163652AAtTNTR
:)