How many polarized filters are needed minimally to block light intensity?(1 point)
Which of the following is the best option?
a) two filters parallel to each other
b) three filters perpendicular to each other
c) two filters perpendicular to each other
d) one filter
c) Two filters perpendicular to each other are needed minimally to block light intensity.
Why did the polarized filter go to therapy?
Because it was feeling a bit intense!
To block light intensity, the best option would be:
c) two filters perpendicular to each other
This configuration will effectively block the maximum amount of light intensity by reducing the amount of light that can pass through. Two filters parallel to each other would not block as much light, three filters perpendicular to each other may be excessive, and one filter alone may not provide enough coverage. So, a good "polarized filter sandwich" with two perpendicular filters will do the trick!
c) two filters perpendicular to each other
To understand how many polarized filters are needed to block light intensity, we need to know how polarized filters work.
Polarized filters are designed to selectively block light waves that oscillate in certain orientations, while allowing light waves of other orientations to pass through. When two polarized filters are placed together, their polarizing axes either align or are perpendicular to each other.
Now, let's analyze each option given:
a) Two filters parallel to each other: If the polarizing axes of both filters are parallel, they will allow most of the light to pass through, blocking only a small amount of light intensity. Therefore, two parallel filters are not the best option to block light intensity.
b) Three filters perpendicular to each other: Placing three filters perpendicular to each other will significantly reduce the amount of light passing through. Each filter will block some light, and the combination of three filters will result in a stronger blocking effect. This option is a better choice as it reduces light intensity.
c) Two filters perpendicular to each other: Placing two filters perpendicular to each other will also block a significant amount of light. However, using three filters as in option b) would provide a stronger blocking effect.
d) One filter: Using only one filter will block some amount of light intensity, but it won't provide the same level of blocking as multiple filters.
In conclusion, the best option to block light intensity would be b) three filters perpendicular to each other.