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WorksheetsLight Mirror Refraction
Total questions: 24
Worksheet time: 48mins
Which of the following best describes the image for a thin converging lens that forms whenever the object is at a distance less than one focal length from the lens?
inverted, enlarged and real
upright, enlarged and virtual
upright, reduced and virtual
inverted, reduced and real
Which of the following best describes the image for a thin diverging lens that forms whenever the magnitude of the object distance is less than that of the lens' focal length?
inverted, enlarged and real
upright, enlarged and virtual
upright, reduced and virtual
inverted, reduced and real
The best definition of refraction is ____.
passing through a boundary
bouncing off a boundary
changing speed at a boundary
changing direction when crossing a boundary
A ray of light in air is incident on an air-to-glass boundary at an angle of 30. degrees with the normal. If the index of refraction of the glass is 1.65, what is the angle of the refracted ray within the glass with respect to the normal?
Use Snell's law:ni * sine(Theta i) = nr * sine(Theta r)
56 degrees
46 degrees
30. degrees
18 degrees
If the critical angle for internal reflection inside a certain transparent material is found to be 48.0 degrees, what is the index of refraction of the material? (Air is outside the material).
Use Snell's Law ni * sine(Theta i) = nr * sine(Theta r)
1.35
1.48
1.49
0.743
A light ray in air enters and passes through a block of glass. What can be stated with regard to its speed after it emerges from the block?
speed is less than when in glass
speed is less than before it entered glass
speed is same as that in glass
speed is same as that before it entered glass
Which of the following statements are true of converging lenses?
Converging lenses are thicker at the center than they are at the edges
Converging lenses can produce images which are both magnified and reduced in size.
The images formed by a converging lens can be located on either side of the lens relative to the object.
All of these
Which of the following statements are true of diverging lenses?
Diverging lenses only produce virtual images.
Diverging lenses only produce upright images.
Diverging lenses only produce reduced images.
All of these
Which of the following statements are true of real images?
Real images are inverted.
Real images as formed by lenses are located on the opposite side of the lens from the object.
Real images are only formed by converging lenses, never by diverging lenses.
All of these
Which of the following statements are true of virtual images?
Virtual images are always upright.
Virtual images as formed by lenses are always located on the same side of the lens as the object.
Virtual images can be formed by both converging lenses (when the object is inside of F) and diverging lenses (regardless of the object location).
All of these
Which of the following best describes the image formed by a plane mirror?
virtual, inverted and enlarged
real, inverted and reduced
virtual, upright and the same size as object
real, upright and the same size as object
Which of the following best describes the image formed by a concave mirror when the object is located somewhere between the focal point (F) and the center of curvature (C) of the mirror?
virtual, upright and enlarged
real, inverted and reduced
virtual, upright and reduced
real, inverted and enlarged
Which of the following best describes the image formed by a concave mirror when the object is at a distance further than the center of curvature (C) of the mirror?
virtual, erect and enlarged
real, inverted and reduced
virtual, upright and reduced
real, inverted and enlarged
Which of the following best describes the image formed by a concave mirror when the object distance from the mirror is less than the focal length (f)?
virtual, upright and enlarged
real, inverted and reduced
virtual, upright and reduced
None of these
When the image of an object is seen in a plane mirror, the image is _____.
real and upright.
real and inverted.
virtual and upright.
virtual and inverted.
When the image of an object is seen in a concave mirror the image will _____.
always be real.
always be virtual.
be either real or virtual.
will always be magnified.
When the image of an object is seen in a convex mirror the image will _____.
always be real.
always be virtual.
may be either real or virtual.
will always be magnified.
Rays of light traveling parallel to the principal axis of a concave mirror will come together _____.
at the center of curvature.
at the focal point.
at infinity.
at a point half way to the focal point.
Which of the following statements is/are true of a virtual image?
Virtual images are always located behind the mirror.
Virtual images can be magnified in size, reduced in size or the same size as the object.
Virtual images can be formed by concave, convex and plane mirrors.
All of these
Which of the following statements is/are true of a real image?
Real images can be magnified in size, reduced in size or the same size as the object.
Real images can be projected onto a sheet of paper.
Both of these
Neither of these
When light passes from air into a denser material it bends:
Towards the normal
Away from the normal
It is the normal
Keeps going straight
When the light passes out of the glass, back into the air
It bends away from the normal
It does not bend
It bends towards the normal
It continues to be the normal
A curved piece of transparent material is what?
Mirror
Lens
Window
Light
Lenses that are thinner in the middle than the edge:
Convex
Flat
Concave
Round
