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The electric vector vibration ofan elect...

The electric vector vibration ofan electromagneticwave is given by `E = (50 NC^(-1)) sin omega,(t- x//c)` The intensity of the wave is

A

`2.3 Wm^(-2)`

B

`4.3 Wm^(-2)`

C

`3.3 Wm^(-2)`

D

`1.8Wm^(-2)`

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