Question

For an electromagnetic wave travelling along y-axis,
the electric field component is known to be along
(3i– 4K) at an instant. The direction of magnetic
field at this instant is along
(1) (-3i– 4k)
(2) (3i + 4k)
(3) (-4i-3k)
(4) (4i+3k)
​

Answer 1

Answer:

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