Question

Complete the passage to describe polarization.

Unpolarized light is filtered by a polarizer that has a vertical plane, allowing light with
vertical
oscillations to pass through and blocking light that oscillates in other directions.

Then, another polarizer that has a
plane is used to block the polarized light.

Answer 1

Unpolarized light is filtered by a polarizer that has a vertical plane, allowing light with vertical oscillations to pass through and blocking light that oscillates in other directions.

Then, another polarizer that has a horizontal plane (i.e., its transmission axis is perpendicular to the first) is used to block the polarized light — since the second polarizer only transmits horizontal oscillations, the vertically polarized light from the first is extinguished (transmission ∝ cos²90° = 0).