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+2 votes
6.0k views
in Physics by (38.4k points)

In an electromagnetic wave the electric field vector and magnetic field vector are given as \(\vec E=E_0\hat i\) and \(\vec B=B_0\hat k\) respectively. The direction of propagation of electromagnetic wave is along :

(1) (\(\hat k\))

(2) \(\hat j\)

(3) (-\(\hat k\))

(4) (-\(\hat j\))

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1 Answer

+2 votes
by (40.3k points)

Correct option is (4) (\(-\hat j\))

Direction of propagation = \(\vec E\times\vec B=\hat i\times\hat k=-\hat j\)

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