QS 13 (Test 3)

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Which principle is used to explain diffraction of a wave?

Huygens Principle

Which color of light has the slowest speed in a vacuum?

all have the same speed in a vacuum

According to Huygens' principle, every point on a wave

behaves as a source of new waves.

An opaque object is blue when illuminated with white light. What color is it when viewed through a red transparency?

black

An opaque object is blue when illuminated with white light. What color is it when viewed through a yellow transparency?

black

An opaque object is red when illuminated with white light. What color is it when viewed through a cyan transparency?

black

What color is a normally blue object when illuminated with green light?

black

What color is a normally blue object when illuminated with yellow light?

black

What color is a normally red object when illuminated with cyan light?

black

What color is a normally red object when illuminated with green light?

black

An opaque object is magenta when illuminated with white light. What color is it when viewed through a blue transparency?

blue

What color is a normally blue object when illuminated with cyan light?

blue

What color is a normally magenta object when illuminated with blue light?

blue

The complementary color of red is

cyan

This spectrum was most likely produced by white light passing through a _____________ transparency.

cyan

What color light is transmitted by a piece of cyan glass?

cyan

A sheet of red paper will look black when illuminated with

cyan light

When considering double slit interference, the pattern spreads out as the distance between slits __________ .

decreases

When considering double slit interference, the distance between bright spots is _____________________ the wavelength of light.

directly proportional to

A property of non-cubic transparent crystals, like calcite, is that light that travels through them...

emerges polarized.

Consider plane waves incident upon a barrier with a small opening. After passing through the opening, the waves

fan out

What color is a normally yellow object when illuminated with green light?

green

What color light is absorbed by a piece of magenta glass?

green

For radio reception, diffraction is

helpful

When considering double slit interference, the pattern spreads out as the distance to the screen __________ .

increases

Waves diffract the most when their wavelength is

long

If sunlight were green instead of white, the most comfortable color to wear on a cold day would be

magenta

This spectrum was most likely produced by white light passing through a _____________ transparency.

magenta

What color light is transmitted by a piece of magenta glass?

magenta

What color is a normally red object when illuminated with magenta light?

red

What color is a normally red object when illuminated with yellow light?

red

What color light is absorbed by a piece of cyan glass?

red

Magenta light is really a mixture of

red and blue light.

Polarized sunglasses are used at the beach to mainly reduce glare that has been polarized by _________________.

reflection

Diffraction is more pronounced through relatively

small openings.

When polychromatic light is viewed through a spectroscope, the innermost color seen will be...

the color with the shortest wavelength.

The most common method of polarization is polarization by _________________.

transmission

Polarization is a property of...

transverse waves

A light wave that is vibrating in more than one plane is referred to as ____________________ light.

unpolarized

The glare seen from a metal cookie sheet sitting on the kitchen counter is largely...

unpolarized

The polarization axes of ordinary sunglasses are...

vertical

The complementary color of blue is

yellow

This spectrum was most likely produced by white light passing through a _____________ transparency.

yellow

When the lights depicted above shine on the screen, the paper appears...

yellow

A blue object will appear black when illuminated with

yellow light


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