Waves - Polarisation - smart phone physics

Download this file and copy it across to your Smartphone.

You'll need to install a free PDF document reader (like the Adobe Acrobat Reader) onto your smartphone as well.

Open the pdf file and revise wherever, whenever, whatever :)

HideShow resource information
  • Created by: Mal
  • Created on: 19-03-14 12:03
Preview of Waves - Polarisation - smart phone physics

First 20 words of the document:

Polarisation
Transverse waves only.
Unpolarised waves ­
plane of wave
oscillation is randomly
orientated.

Other pages in this set

Page 2

Preview of page 2

Here's a taster:

Polarisation
Plane polarised waves ­
all waves have
matching planes of
oscillation e.g. vertical
or horizontal.…read more

Page 3

Preview of page 3

Here's a taster:

Polarisation
In this example, the
polariser's "preferred
plane of polarisation" is
vertical.
This means it will only
let through vertically
polarised waves and
absorb the rest.…read more

Page 4

Preview of page 4

Here's a taster:

Polarisation
A polariser for
microwaves is made
from parallel metal
bars.
A polariser for optical
wavelengths is made
from parallel polymer
chains.…read more

Page 5

Preview of page 5

Here's a taster:

Polarisation
Charged particles are
free to oscillate along
the metal bars (or
polymer chains)
So they absorb
electromagnetic waves
which oscillate parallel
to those bars/chains…read more

Page 6

Preview of page 6

Here's a taster:

Aerials
Examples of polarised
(selective) absorbers ­
Short horizontal metal
bars on television
aerials.…read more

Page 7

Preview of page 7

Here's a taster:

Sunglasses
Polymer chains in
certain plastics ­
Polaroid sunglasses.
Reflected glare from
horizontal surfaces is
horizontally plane
polarised.…read more

Page 8

Preview of page 8

Here's a taster:

Malus's Law
If the angle of rotation
between two parallel
polarisers is then the
Intensity, I of the
transmitted light is
given by:
I =Io Cos2
Where Io is the incident
intensity on the second
polariser.…read more

Page 9

Preview of page 9

Here's a taster:

Malus's Law
I =Io Cos2…read more

Page 10

Preview of page 10

Here's a taster:

Three Videos
VIDEO
... for polarisation with
light and microwaves.
VIDEO
... for 3D Cinema
Polarisers.
VIDEO
...for Circular
Polarisation.…read more

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all resources »