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?
Polarized light of 40 W/m² meets a filter turned 45° from its direction. Using I = I₀ cos² θ, how intense is the light that passes, Esme?
In the photon diagram, which way does light vibrate after filter A, Jun?
- Side to side
- Up and down
- In many directions at once
In the photon diagram, filter B is turned so its slots are vertical. What happens, Luz?
Use the picture in question 4.
- No light passes B
- The light passes B
- The light changes color
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
- Both get through
- One shaken up and down
Why do polarized sunglasses help near a lake, Ren?
- They block heat
- They make the water brighter
- They cut glare off the water
How do some 3-D movie glasses work, Tala?
- Each lens is a different size
- They magnify the screen
- Each lens passes one polarization
Which device uses polarizing filters to make its picture, Zee?
- An LCD screen
- A light switch
- A loudspeaker