FRSC365: EXAM 1 QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED GRADED A++
is light treated as a particle or wave?
both, but mostly a wave
what is the speed of light?
3*10^8
what is the direction of propagation?
the direction that light travels
what are the three things that a good microscope should do?
magnify, have good resolution, have good contrast
what is monochromatic light?
light that is one color (all same wavelength)
what is polarized light?
light that oscillates all in the same direction
what is coherent light?
monochromatic light waves that move in sync with each other
what is collimated light?
light rays that run parallel to each other
what is absorption?
produces color
what is reflection?
when light bounces off of a mirrored surface
, what is refraction?
light that goes through transparent objects
what is diffraction?
light that bends around objects
what is a refractive index?
a measure of what happens to the speed of light
the more dense an object is, the ________ light will move through it
slower
the less dense an object is, the ________ light will move through it
faster
what is the formula for calculating refractive index?
n = c/v
n: refractive index
c: speed of light (3*10^8 m/s)
v: speed of light in medium
if an object moves from a lower RI to a higher RI, the velocity of light _____ and
the light will bend ______ the normal
decreases
toward
if an object moves from a higher RI to a lower RI, the velocity of light _____ and
the light will bend ______ the normal
increases
away
COMPLETE SOLUTIONS VERIFIED GRADED A++
is light treated as a particle or wave?
both, but mostly a wave
what is the speed of light?
3*10^8
what is the direction of propagation?
the direction that light travels
what are the three things that a good microscope should do?
magnify, have good resolution, have good contrast
what is monochromatic light?
light that is one color (all same wavelength)
what is polarized light?
light that oscillates all in the same direction
what is coherent light?
monochromatic light waves that move in sync with each other
what is collimated light?
light rays that run parallel to each other
what is absorption?
produces color
what is reflection?
when light bounces off of a mirrored surface
, what is refraction?
light that goes through transparent objects
what is diffraction?
light that bends around objects
what is a refractive index?
a measure of what happens to the speed of light
the more dense an object is, the ________ light will move through it
slower
the less dense an object is, the ________ light will move through it
faster
what is the formula for calculating refractive index?
n = c/v
n: refractive index
c: speed of light (3*10^8 m/s)
v: speed of light in medium
if an object moves from a lower RI to a higher RI, the velocity of light _____ and
the light will bend ______ the normal
decreases
toward
if an object moves from a higher RI to a lower RI, the velocity of light _____ and
the light will bend ______ the normal
increases
away
