1. Three polarized are placed such that, the first and the third are mutually perpendicular to each other. Unpolarized light of intensity Io is incident or first polarized. The intensity of light emerging from the third polaroid’s is (1/16) of the intensity of incident light. Find the angle between first the angle between first and second polaroid’s.

α= 25.6 degrees

2. For our purposes, it is sufficient to merely say that an electromagnetic wave is a transverse wave that has both an

electric and a magnetic component

3. The use of two filters, one can completely block all of the light that is incident upon the set; this will only occur if the polarization axes are rotated such that they are :

perpendicular to each other

4. What will happened if you hold a polarized sunglass in front of you and rotate them. While looking at the blue sky, you will see the sky get _____

brighter and dimmer

5. What happens when two polarizing filters are placed so that their axes of polarization are perpendicular to each other?

there is no transmitted light

6. What do all the types of radiation have in common?

speed

7. How can you tell one form of electromagnetic energy from another?

wavelength

8. On rotating the analyzer if the intensity of light rays coming out of it varies from maximum to zero, then the incident beam of light is ________.

plane polarized

9. Which one of the following cannot be polarized?

sound waves

10. Light waves are ___________.

like sound waves