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Find the intensity of the wave discussed...

Find the intensity of the wave discussed in example .

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Solution:
The intensity is
` I= (1/2(varepsilon_0)(E_(0)^2) c) = (1.1 xx (10^-8)J (m^-3)) xx (3 xx (10 ^8)m (s^-1))`
` = 3.3 W (m^-2).`
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