Question

1. Use one of your polarizing filters to look at the sky at 90 degrees to the direction of the Sun.

   Never look directly at the Sun.

2. Look at different regions of the sky and notice if the intensity of the light changes as you rotate the polarizer.

3. Record your observations.

4. Are your sunglasses polarized? How do you know for certain?

Answer 1

Intensity of light changes sinusoidally with rotation of polarizer. It was maximum when axis of polarizer alligned at 90 degrees with sun. Then it decreases with angle.

Polarized sunglasses have a laminated surface containing vertical stripes and these strips only allow vertically-polarized light to enter the wearer’s eyes. They eliminate Glare as the polarized filter does not allow horizontally polarized light(glare reason).Check out for any glare present or not to tell about polarized sunglasses.

answered by: anonymous