- #1

OhNoYaDidn't

- 25

- 0

## Homework Statement

## Homework Equations

## The Attempt at a Solution

I found the expression for the magnetic field, and then the Poynting vector.

If i find the intensity, that's the same as finding the average value of the Poynting vector, and the cos^2 disappears... Can you tell me what to do next?

Thank you.