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Worksheets11.2 Light Polarisation, Dispersion and Colours
Total questions: 20
Worksheet time: 40mins
Polarization is the restriction of a transverse wave so that...
the wave can only vibrate in one plane
the wave can only vibrate in two planes
the wave can vibrate in all planes
the wave cannot vibrate at all
Which waves can be polarised?
Transverse waves
Longitudinal waves
Both transverse and longitudinal waves
Neither transverse and longitudinal waves
light waves can be polarized as they are:
transverse
of high frequency
longitudinal
reflected
Approximately how much light is blocked by two polarizing filters that are perpendicular to each other?
0%
50%
75%
100%
Properties of waves are
I. polarization
II. diffraction
III. refraction
Which of these properties apply to sound waves?
I and II
II and III
I and III
All of them
When glass or plastic is bent or stressed, you can see interference patterns using a polarising filter. This is an example of...
Bend polarisation
Rage polarisation
Stress polarisation
Street polarisation
True or false: Stress polarisation is used to test for stress in model buildings and bridges and improve their design?
False
True
What is dispersion?
The combination of two rays of light
The separating of light into perpendicular beams
The reflection of light off a smooth surface
The separating of light into its component colours
This is the example of dispersion of light
sky looks bright orange in the evening
shadow
Pool seems shallower
rainbow
Which two things below can cause dispersion?
A dark room
Prism
A plane mirror
Diffraction grating
When dispersion of white light occurs in a prism, which colour deviates the most?
Red
Violet
Green
Yellow
When dispersion of white light occurs with a diffraction grating, which colour deviates the most?
Red
Violet
Green
Yellow
Why does red light get deviated the most when white light is dispersed using a diffraction grating?
Because it has the longest wavelength
Because it has the shortest wavelength
Because it's unlucky
These are all colours of spectrum except
indigo
blue
purple
green
When the three primary colours are combined in equal intensity they produce...
A spectrum
White light
Nothing
In physics, what are the three primary colours? (Select the three correct answers below)
Red
Blue
Yellow
Green
When two primary colours combine in equal intensity they produce...
tertiary colours
a secondary colour
a new primary colour
nothing
In physics what are the three secondary colours?
Purple
Cyan
Yellow
Magenta
A pair of complimentary colours consist of _____________ such that when combined they produce white light.
two primary colours
two secondary colours
a primary and a secondary colour
Which of the following are a pair of complementary colours?
Blue and green
Red and green
Cyan and red
Blue and magenta
