5-27.4 Polarization

Approximately how much light is blocked by a single polarizing filter?

• 0%

• 50%

• 75%

• 100%

Tags

NGSS.MS-PS4-2

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

• 0%

• 50%

• 75%

• 100%

Tags

NGSS.MS-PS4-2

A Polarizing filter is used to reduce glare on reflective surfaces including glass, windows, and water.

• True

• False

Tags

NGSS.MS-PS4-2

The production of light with a specific pattern of oscillation.

• reflection

• polarization

• refraction

• diffraction

If the polarizing axis of the second filter is parallel to

that of the first, the light will .............

• pass through it

• block

• reflect

Tags

NGSS.MS-PS4-2

How do polarizing filters allow each eye to see separate images in the projection of 3-d movies?

• No one really knows...

• Each glasses lens is polarized the same and two polarized images are projected onto the screen

• Each glasses lens is polarized 45 degrees from the other and two polarized images are projected onto the screen

• Each glasses lens is polarized 90 degrees from the other and two polarized images are projected onto the screen

Tags

NGSS.MS-PS4-2

Why is light from a lamp or candle frame nonpolarized?

• The electrons are vibrating in one direction

• The electrons are vibrating in random directions

• The electrons are not moving

• They emit polarized light

What is the difference between light that is polarized and light that is not?

• polarized light vibrates along multiple planes; unpolarized light vibrates along a single plane

• there is no difference

• polarized light vibrates along a single plane; unpolarized light vibrates along multiple planes

A Polarizing filter is used to reduce glare on reflective surfaces including glass, windows, and water.

• True

• False

Tags

NGSS.MS-PS4-2

Which of the following types of wave cannot be plane polarised?

• light

• microwaves

• ultrasound

• ultraviolet