# Plane Wave, Power Passing Through Copper Sheet

1. Feb 4, 2012

### jegues

1. The problem statement, all variables and given/known data

See figure attached.

2. Relevant equations

3. The attempt at a solution

See other figure attached.

Am I correctly calculating the power that passes through the area given in i) at the surface?

I'm not certain my expressions for,

$$\vec{P_{2AV}^{t}}$$ are correct for the general case.

Is what I have correct?

EDIT: I feel like the aim of this problem has nothing to do with what my solution attempted to achieve.

Isn't this a simple poynting vector problem that has nothing to do with incident, transmitted and reflected waves?

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Last edited: Feb 4, 2012