DMCP 160, Exam 2 Review
Reflection and Refraction Review
Q1) The law of reflections holds for:
1) plane mirrors
2) curved mirrors
3) both of these
4) neither of these
Q2) the shortest plane mirror in which you can see your entire image is
1) half your height
2) about 3/4 your height
3) about 1/3 your height
4) equal to your height
5) dependent on your distance from the mirror
Q3) It is difficult to see the roadway in front of you when you are driving on a
rainy night mainly because
1) light scatters from raindrops and cuts down the light to reach your eyes
2) of added condensation on the inner surface of the windshield
3) the film of water on your windshield provides an additional reflecting surface
4) the film of water on the roadway makes the road less diffuse
5) none of these
Q4) Light refracts when traveling from air into glass because light
1) has greater intensity in air than in glass
2) has greater intensity in glass than in air
3) has greater frequency in air than in glass
4) has greater frequency in glass than in air
5) travels slower in glass than in air
Q5) As a light ray enters or exits a water-air interface at an angle of
15-degrees with the normal, it
1) always bends toward the normal
2) always bends away from the normal
3) sometimes bends towards the normal
4) does not bend
Q6) Atmospheric refraction makes the daylight hours a bit
1) longer
2) shorter
3) longer in summer but shorter in winter
Concave Mirror Review
Q1) An observer O, facing a mirror,
Where does O perceive the mirror image of
1) 1
2) 2
3) 3
4) 4
5) some other location
observes a light source S.
S to be located?
Q2) When you stand in front of a plane mirror, your image is:
1) real, erect, and smaller than you
2) real, erect, and the same size as you
3) virtual, erect, and smaller than you
4) virtual, erect, and the same size as you
5) real, inverted, and the same size as you
Q3) Real images formed by a spherical mirror are always:
1) on the side of the mirror opposite the source
2) on the same side of the mirror as the source but closer to the mirror than the source
3) on the same side of the mirror as the source but closer to the mirror than the focal point
4) on the same side of the mirror as the source but further from the mirror than the focal point
5) none of the above
Q4) An object is placed in front of a concave mirror as shown in the figure below.
Which of the following groups of terms best
1) real, upright, enlarged
2) real, inverted, reduced
3) virtual, upright, enlarged
4) real, inverted, enlarged
5) virtual, inverted, reduced
Q5) Where must an object be placed in front of a concave mirror so that
the image and the object are the same size?
(F is the focal point and R is the center of curvature.)
1) at f
2) at R
3) between f and the mirror
4) between f and R
5) beyond R
Q6) Can a virtual image (from a real object) ever be inverted?
1) yes
2) no
3) maybe
describes the image?
Converging Lens Review
Q1) An erect object is located outside of the radius of the lens. Its image is:
1) real, inverted, and larger than the object
2) real, inverted, and same size as the object
3) real, inverted, and smaller than the object
4) virtual, erect, and larger than the object
5) virtual, inverted, and larger than the object
Q2) When you use a microscope to magnify a cell, where is the cell moved relative to the lens:
1) outside the radius
2) at the radius
3) between the radius and focal point
4) at the focal point
5) between the lens and focal point
Q3) An erect object is located at the radius of the lens. Its image is:
1) real, inverted, and larger than the object
2) real, inverted, and same size as the object
3) real, inverted, and smaller than the object
4) virtual, erect, and larger than the object
5) virtual, inverted, and larger than the object
Q4) When you go to the movies, the projector is shined through a lens system to
produce the film image on the screen. Where is the projector relative to the lens:
1) outside the radius
2) at the radius
3) between the radius and focal point
4) at the focal point
5) between the lens and focal point
Q5) An erect object is located between the radius of the lens and its focal point.
Its image is:
1) real, inverted, and larger than the object
2) real, inverted, and same size as the object
3) real, inverted, and smaller than the object
4) virtual, erect, and larger than the object
5) virtual, inverted, and larger than the object
Q6) If you want to produce a image that is the same size as the object, the lens should be move so that it is :
1) outside the radius
2) at the radius
3) between the radius and focal point
4) at the focal point
5) between the lens and focal point
Q7) An erect object is located between converging lens and its focal point.
Its image is:
1) real, inverted, and larger than the object
2) real, inverted, and same size as the object
3) real, inverted, and smaller than the object
4) virtual, erect, and larger than the object
5) virtual, inverted, and larger than the object
Q8) Your eye is a lens and focuses light at the back of your eye.
The image are always
1) real, inverted, and larger than the object
2) real, inverted, and same size as the object
3) real, inverted, and smaller than the object
4) virtual, erect, and larger than the object
5) virtual, inverted, and larger than the object