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In an electromagnetic wave the electric ...

In an electromagnetic wave the electric field vector and magnetic field vector are given as `vecE=E_(0)hati` and `vecB=B_(0)hatk` respectively. The direction of propagation of electromagnetic wave is along:

A

`(hat(k))`

B

`(- hat(j))`

C

`(- hat(k))`

D

` hat(j)`

Text Solution

Verified by Experts

The correct Answer is:
B
Direction of propagation of wave = Direction of ` vec (E) xx vec (B)`
= Direction of ` E_(0) hat(i) xx B_(0) hat(k)`
= Direction of ` E_(0) B_(0) (- hat(j)) = - hat(j)`
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