electric and magnetic field inversely proportional to the square of the r(distance from the charged particle) but electromagnetic waves move large distance with little lag in their intensity it is not seeming that they obey inverse square law?

Dear vikash

Inverse square law is given for point charges and em waves travels due to electromagnetic induction in space where changing magnetic field produces electric field not a point charge, and vice versa for magnetic field. For greater insight read some text on em waves and maxwells equations, induced electric fields.

All the best.

vinay

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