1.

A plane electromagnetic wave in a non- magnetic dielectric medium is given bys-50:) with distance being in meter and time in seconds thedielectric constant of the medium is12.42) 5.83) 8.24) 4.8

Answer»

V=w/k

Thus,v=12.5×10^-7

Dielectricconstant k=c/v

Where c is speed of light

Thus ans is 2.4 option a



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