Polarization of light
Grade 11 Science Worksheet - Building Confidence
Circle the best answer, or write your answer on the line.
Polarized light of 100 W/m² meets a filter turned 60° from its direction. Using I = I₀ cos² θ, how intense is the light that passes, Ari?
Polarized light of 80 W/m² meets a filter turned 30° from its direction. Using I = I₀ cos² θ, how intense is the light that passes, Bo?
In the photon diagram, which way does light vibrate after filter A, Jun?
- In many directions at once
- Side to side
- Up and down
In the photon diagram, why does no light leave filter B, Kira?
Use the picture in question 3.
- Filter B is painted black
- Its slots cross the light
- Filter A used up the light
Why can light be polarized, Milo?
- It is a transverse wave
- It is a longitudinal wave
- It travels very fast
Can sound waves be polarized, Noah?
- No: sound is longitudinal
- Yes, like light
- Yes, with a thick filter
A rope wave passes through a vertical slot in a fence. Which wave gets through, Pia?
- One shaken side to side
- One shaken up and down
- Both get through
Why do polarized sunglasses help near a lake, Ren?
- They cut glare off the water
- They block heat
- They make the water brighter
How do some 3-D movie glasses work, Tala?
- They magnify the screen
- Each lens is a different size
- Each lens passes one polarization
Which device uses polarizing filters to make its picture, Zee?
- A light switch
- An LCD screen
- A loudspeaker