Physics 1260 Review 3 test questions
with correct answers.
C - CORRECT ANSWER.If you look at yourself in a pocket mirror, then hold the
mirror farther away, you see
A) more of yourself.
B) less of yourself.
C) the same amount of yourself.
B - CORRECT ANSWER.Object and image for a plane mirror occur
A) along the same plane.
B) equal distances from the mirror.
C) at right angles to each other.
D) all of the above
E) none of the above
B - CORRECT ANSWER.Diffuse reflection occurs when the size of surface
irregularities is
A) small compared to the wavelength of the light used.
B) large compared to the wavelength of the light used.
C) microscopic.
A - CORRECT ANSWER.A rough surface for infrared waves may be polished for
A) radio waves.
B) light waves.
C) both of these
D) neither of these
E - CORRECT ANSWER.When light reflects from a surface, there is a change in its
A) frequency.
B) wavelength.
C) speed.
D) all of the above
E) none of the above
, D - CORRECT ANSWER.You photograph the image of your little sister, who stands
2 meters in front of a plane mirror. Holding the camera beside her head, the distance
to her image is
A) 1 meter.
B) 2 meters.
C) 3 meters.
D) 4 meters.
E) none of the above
C - CORRECT ANSWER.If you walk towards a mirror at a certain speed, the relative
speed between you and your image is
A) half your speed.
B) your speed.
C) twice your speed.
D) none of the above
A - CORRECT ANSWER.The shortest plane mirror in which you can see your entire
image is
A) half your height.
B) about 3/4 your height.
C) about 1/3 your height.
D) equal to your height.
E) dependent on your distance from the mirror
B - CORRECT ANSWER.To see his full height, Blinky Bill who is 1 meter tall needs
a mirror that is at least
A) 0.33 m tall.
B) 0.50 m tall.
C) 0.75 m tall.
D) 1 m tall.
E) depends on distance from the mirror.
C - CORRECT ANSWER.If you look at yourself in a pocket mirror, then hold the
mirror farther away, you see
A) more of yourself.
B) less of yourself.
C) the same amount of yourself.
C - CORRECT ANSWER.In looking at yourself in a steamy mirror you wipe just
enough moisture away to barely see a full view of your face. If you move back from
the mirror you'll see
A) a bit more of your face.
B) a bit less of your face.
C) the same amount of your face.
D - CORRECT ANSWER.It is difficult to see the roadway when driving on a rainy
night mainly because
A) light scatters from raindrops and reduces the amount of light reaching your eyes.
B) of additional condensation on the inner surface of the windshield.
C) the film of water on your windshield provides an additional reflecting surface.
with correct answers.
C - CORRECT ANSWER.If you look at yourself in a pocket mirror, then hold the
mirror farther away, you see
A) more of yourself.
B) less of yourself.
C) the same amount of yourself.
B - CORRECT ANSWER.Object and image for a plane mirror occur
A) along the same plane.
B) equal distances from the mirror.
C) at right angles to each other.
D) all of the above
E) none of the above
B - CORRECT ANSWER.Diffuse reflection occurs when the size of surface
irregularities is
A) small compared to the wavelength of the light used.
B) large compared to the wavelength of the light used.
C) microscopic.
A - CORRECT ANSWER.A rough surface for infrared waves may be polished for
A) radio waves.
B) light waves.
C) both of these
D) neither of these
E - CORRECT ANSWER.When light reflects from a surface, there is a change in its
A) frequency.
B) wavelength.
C) speed.
D) all of the above
E) none of the above
, D - CORRECT ANSWER.You photograph the image of your little sister, who stands
2 meters in front of a plane mirror. Holding the camera beside her head, the distance
to her image is
A) 1 meter.
B) 2 meters.
C) 3 meters.
D) 4 meters.
E) none of the above
C - CORRECT ANSWER.If you walk towards a mirror at a certain speed, the relative
speed between you and your image is
A) half your speed.
B) your speed.
C) twice your speed.
D) none of the above
A - CORRECT ANSWER.The shortest plane mirror in which you can see your entire
image is
A) half your height.
B) about 3/4 your height.
C) about 1/3 your height.
D) equal to your height.
E) dependent on your distance from the mirror
B - CORRECT ANSWER.To see his full height, Blinky Bill who is 1 meter tall needs
a mirror that is at least
A) 0.33 m tall.
B) 0.50 m tall.
C) 0.75 m tall.
D) 1 m tall.
E) depends on distance from the mirror.
C - CORRECT ANSWER.If you look at yourself in a pocket mirror, then hold the
mirror farther away, you see
A) more of yourself.
B) less of yourself.
C) the same amount of yourself.
C - CORRECT ANSWER.In looking at yourself in a steamy mirror you wipe just
enough moisture away to barely see a full view of your face. If you move back from
the mirror you'll see
A) a bit more of your face.
B) a bit less of your face.
C) the same amount of your face.
D - CORRECT ANSWER.It is difficult to see the roadway when driving on a rainy
night mainly because
A) light scatters from raindrops and reduces the amount of light reaching your eyes.
B) of additional condensation on the inner surface of the windshield.
C) the film of water on your windshield provides an additional reflecting surface.
