WHAT IS EM WAVE . AS LIGHT PRODUCES EM WAVE BUT LIGHT HAS ONLY WAVE AND NOT CHARGED PARTICLE THEN WHY IT IS PRODUCES ELECTRIC FIELD AND MAGNETIC FIELD . AS I AM CONFUSION THAT IN A CONDUCTOR , IT PRODUCES MAGNETIC FIELD AROUND IT BUT EM WAVE PRODUCES BOTH FIELD FROM POINT TO INFINETY e.g. LIGHT HOW IT TRAVEL AS THERE IS NO CHARGED PARTICLES

as permodern physics ...... nd matter duality ..... each movin particle have wave associated to it.

Like when u walk .... there are waves that are associattd to u ..... bt the are so large in wavelenght that we cant measure it with any thing.

so it was concluded that if waves are there ..... there must be particles asssociated with those waves.e versa

hence a phooton was given the name to that particle. and was concluded that light is constituted by photons nd travels in form of waves ........ further..... Electric field is a form of energy (can be cosidered as ) nd same fr ... magnetic field...

like ...... gravity exists every where ...s ame is case wid these waves..

bt particular is that .... both these aves are source to each other..

when magnetic field is there it gives rise to electric field nd vicversa.

hence the propogate infinitly.