correct options from the
following :
(a) The associated magnetic field is given as
(b)
The associated magnetic field is given as
(c) The
given electromagnetic field is circularly polarised
(d) The given electromagnetic wave is plane polarized
Answer:
(a,d)In em wave, the
electric field vector is give as,
In em wave, the associated magnetic field vector,
Thus, option (a) is correct. As 
and 
are perpendicular to each
other and the propagation of em wave is 
to
as well as, so the given em wave is plane polarised. Thus, option (d)
is true.
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