Physics Chapter
8-13 - Exam 2
with verified
solutions
an indication that a light is a wave is -
answer that it has dark bands in the
diffraction pattern
the colors of an oil slick indicate that -
answer light is a wave
the index of refraction measures - answer
the speed of light
light waves are - answer transverse
,the resolution of a human eye is about -
answer 1/60 degree
which of the following has the lowest index
of refraction - answer air
as the wavelength of light decreases, the
frequency - answer increases
in one millionth of a second, light will travel -
answer about 1000 feet
a piece of glass is shaped like a pyramid. the
side of the pyramid is tilted at 45 degrees w/
respect to the horizontal. a beam of light is
inside the glass, moving horizontally. when it
emerges from the tilted surface of the glass ,
it will be moving - answer in a direction that
is tilted downward
a stop sign is bright when you shine the
headlamps of your car on it. it most likely is
covered with - answer small glass spheres
,diamonds sparkle in many colors because -
answer light velocity depends on color
which of the following are retroreflectors? -
answer bicycle reflectors, human eyes, stop
signs, animal eyes
two soap bubbles from the same soap appear
to be different colors. they probably have -
answer different thickness
if c is the speed of light in a vacuum, then
the speed of light in glass is approximately -
answer (2/3) c
stealth bombers are undetected by radar, in
part because - answer of the absence of
corner reflectors
rainbows show different colors because -
answer in water, different frequencies have
different velocities
, which of the following is polarized - answer
light from a TV screen
a fiber can send much more information per
second than a wire because - answer light
has a very high frequency
which color of light would give the highest
nuumber of bits per second in fiber optics -
answer blue
shannon is famous for having invented or
discovered - answer the bit
the human eye has cones that detect -
answer green, blue, red
people squint to see better because
squinting - answer bends the lens to make it
stronger
reduces the blur size
old people need reading glasses because
their - answer lenses become less flexible
8-13 - Exam 2
with verified
solutions
an indication that a light is a wave is -
answer that it has dark bands in the
diffraction pattern
the colors of an oil slick indicate that -
answer light is a wave
the index of refraction measures - answer
the speed of light
light waves are - answer transverse
,the resolution of a human eye is about -
answer 1/60 degree
which of the following has the lowest index
of refraction - answer air
as the wavelength of light decreases, the
frequency - answer increases
in one millionth of a second, light will travel -
answer about 1000 feet
a piece of glass is shaped like a pyramid. the
side of the pyramid is tilted at 45 degrees w/
respect to the horizontal. a beam of light is
inside the glass, moving horizontally. when it
emerges from the tilted surface of the glass ,
it will be moving - answer in a direction that
is tilted downward
a stop sign is bright when you shine the
headlamps of your car on it. it most likely is
covered with - answer small glass spheres
,diamonds sparkle in many colors because -
answer light velocity depends on color
which of the following are retroreflectors? -
answer bicycle reflectors, human eyes, stop
signs, animal eyes
two soap bubbles from the same soap appear
to be different colors. they probably have -
answer different thickness
if c is the speed of light in a vacuum, then
the speed of light in glass is approximately -
answer (2/3) c
stealth bombers are undetected by radar, in
part because - answer of the absence of
corner reflectors
rainbows show different colors because -
answer in water, different frequencies have
different velocities
, which of the following is polarized - answer
light from a TV screen
a fiber can send much more information per
second than a wire because - answer light
has a very high frequency
which color of light would give the highest
nuumber of bits per second in fiber optics -
answer blue
shannon is famous for having invented or
discovered - answer the bit
the human eye has cones that detect -
answer green, blue, red
people squint to see better because
squinting - answer bends the lens to make it
stronger
reduces the blur size
old people need reading glasses because
their - answer lenses become less flexible
