Clicker Quizzes
Class 19
Quiz 1:
The incident light ray, the reflected light
ray, and the normal between them
A. lie in the same plane.
B. may or may not lie in the same plane.
C. lie in planes that are perpendicular to one
another.
Class Vote:
Quiz 2:
You put a long, tall mirror on your bedroom
wall to gaze at yourself in. The shortest
plane mirror in which you can see your
entire image is
A.
B.
C.
D.
E.
half your height.
about 3/4 your height.
about 1/3 your height.
equal to your height.
dependent on your distance from the mirror.
Class Vote:
Quiz 3:
Light refracts when traveling from air
into glass because light
A.
B.
C.
D.
E.
has greater intensity in air than in glass.
has greater intensity in glass than in air.
has greater frequency in air than in glass.
has greater frequency in glass than in air.
travels slower in glass than in air.
Class Vote:
Quiz 4
When a light beam emerges from
water into air, the average light speed
A. increases.
B. decreases.
C. remains the same.
Class Vote:
Quiz 5
When light passes through an ordinary
window pane, its angle of emergence
is
A.
B.
C.
D.
E.
usually less than its angle of incidence.
always less than its angle of incidence.
the same as its angle of incidence.
usually more than its angle of incidence.
always more than its angle of incidence.
Class Vote:
The correct answer is C.