At night you look down into an outdoor swimming pool that has a powerful underwater light whose horizontal beam heads to your right. The water is not completely clear, and there is significant...

At night you look down into an outdoor swimming pool that has a powerful underwater light whose horizontal beam heads

to your right. The water is not completely clear, and there is significant scattered light. You have a polarizing film with a

line drawn on it showing the direction of electric field that is passed through with little loss. To minimize the brightness of

the scattered light, should you hold the film with the line in the direction of the beam (left/right) or perpendicular to the

beam (up/down)? Explain briefly, including a diagram.