QS 13 (Test 3)
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
