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21 questions
An object is 1 m in front of a plane mirror. The image is
virtual, inverted, and 1 m behind the mirror
virtual, upright, and 1 m in front of the mirror
real, upright, and 1 m behind the mirror
None of these
Which of the following is true when light enters a denser medium?
v increases, λ decreases, and n increases
v increases, λ decreases, and n decreases
v decreases, λ increases, and n increases
v decreases, λ decreases, and n increases
Rank the indexes of refraction from greatest to least.
n1 > n2 > n3
n2 > n1 > n3
n3 > n1 > n2
n1 > n3 > n2
At and beyond the critical angle, all the light striking the boundary between two substances is
refracted
reflected
some is reflected and some is refracted
absorbed
An image appearing on a screen after passing through a lens is
real and upright
virtual and inverted
real and inverted
none of these
The image formed by a convex mirror is
real and upright
real and inverted
virtual and upright
none of these
How will the image change as the object moves from 2f to f ?
image will increase in size and move away from the mirror
image will increase in size and move toward the mirror
image will decrease in size and move away from the mirror
image size remains constant but moves away from the mirror
The object is positioned just inside of the focus. Which correctly describes the image?
No image is formed
real and upright
real and inverted
virtual and upright
The image formed by the object in the diagram would be
real and inverted
real and upright
no image forms, ray traces never intersect
virtual and upright
The image formed by the object in the diagram would be
virtual and upright
real and upright
no image forms, ray traces never intersect
real and inverted
The type of lens that refracts parallel light rays to the far focal point is a
converging, concave lens
converging, convex lens
diverging, concave lens
all spherical lenses refract parallel rays to the far focus.
The image formed by the object in the diagram would be
real and inverted
real and upright
no image forms, ray traces never intersect
virtual and upright
A
B
C
D
A
B
C
D
A
B
C
D
0.57
0.81
1.22
1.74
A
B
C
D
Which of the following describes Huygen's Principle?
A wave can produce an interference pattern.
A. Every point on a wavefront acts as a source of lots of secondary spherical wavelets, which can therefore interfere with each other.
A. The angle of incidence is equal to the angle of reflection.
A. The speed of light is constant in every direction.
35 degrees
40 degrees
55 degrees
63 degrees
A
B
C
D
34 cm
47 cm
68 cm
130 cm
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