1.

The ratio of contributions made by the electric field and magnetic field components to the intensity of an EM wave is [NCERT Exemplar] (a) c : 1 (6) c² : 1 (c) 1 : 1 (d) √c : 1

Answer»

It means the ratio of CONTRIBUTIONS by the electric field and magnetic field components to the INTENSITY of an electromagnetic wave is 1:1. When the INCIDENT EM wave is completely absorbed by a surface, it delivers energy u and MOMENTUM u/c to the surface.



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