11.2 Light Polarisation, Dispersion and Colours

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

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-5

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

Tags

NGSS.HS-PS4-3

Approximately how much light is blocked by two polarizing filters that are perpendicular to each other?

• 0%

• 50%

• 75%

• 100%

Tags

NGSS.HS-PS4-5

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

Tags

NGSS.HS-PS4-3

Which two things below can cause dispersion?

• A dark room

• Prism

• A plane mirror

• Diffraction grating