Physics Chapter 14 Multiple Choice
which pair of sunglasses is best suited for automobile drivers? The transmission axes are shown by straight lines on the lenses(Hint: The light reflects off the hood of the car)
C, the pair of sunglasses with straight line lenses
which letter in the diagram below(concave mirror) represents the position of the real image of object X?
P
the relationship between frequency, wavelength and speed holds for light waves because
all forms of electromagnetic radiation travel at a single speed in a vacuum
if you know the wavelength of any form of electromagnetic radiation, you can determine its frequency because
all wavelengths travel at the same speed
what color does yellow pigment subtract from white light?
blue
when red light is compared with violet light
both travel at the same speed
when incoming rays of light strike a flat mirror at an angle close to the surface of the mirror, the reflected rays are
close to the mirror's suface
what type of reflection is illustrated in the figure above?
defeused reflection
which factor does not determine the focal length of a lens?
index of refraction
which portion of the electromagnetic spectrum is used in an aircraft navigation?
microwaves
the focal point and center of curvature of a spherical mirror all lie along the
principal axis
which portion of the electromagnetic spectrum is used in a television?
radio waves
what color does blue pigment subtract from white light?
red
which pair of characteristics describe the images formed by convex mirrors?
reduced and erect
when a straight line is drawn perpendicular to a flat mirror at a point where an incoming ray strikes the mirror's surface, the angles of incidence and reflection are measured from the normal and
the angles of incidence and reflection are equal
when the reflection of an object is seen in a flat mirror, the distance from the mirror to the image depends on
the distance from the object to the mirror
the farther the light is from a source
the more spread out light becomes
the image of an object in a flat mirror is always
the same size as the object
what occurs when beams of light of three primary colors are combined?
they form white light
in a vacuum, electromagnetic radiation of short wavelengths
travels as fast as radiation of long wavelengths
which portion of the electromagnetic spectrum is used to identify fluorescent minerals?
ultraviolet light
which portion of the electromagnetic spectrum is used to sterilize medical instruments?
ultraviolet light
when the reflection of an object is seen in a flat mirror, the image is
virtual and upright
in the diagram above (concave mirror) the image of object B would be
virtual, enlarged and upright
in the diagram above (convex mirror) the image of object B would be
virtual, reduced and upright
which of the following best describes the image produced by a flat mirror?
virtual, upright, and magnification equal to one
which portion of the electromagnetic spectrum is used in a microscope?
visible light
when red light and green light shine on the same place on a piece of white paper, the spot appears to be
yellow
if the image of a curved mirror is 1/2 the object distance, the the image size will be______ the object size.
1/2
if a light ray strikes a flat mirror at an angle of 14 degrees from the normal, the reflected ray will be
14 degrees from the normal
if a light ray strikes a flat mirror at an angle of 52 degrees from the normal, the reflected ray will be
52 degrees from the normal
if a light ray strikes a flat mirror at an angle of 30 degrees from the normal, the ray will be reflected at an angle of
60 degrees from the mirror's surface
which letter in the diagram below(Convex) represents the virtual image of object X?
A
which letter in the digram below(Flate Mirror) correctly indicates the position of the image for object X formed by a plane mirror?
A
