WorksheetsChapter 7 Review Quiz Lens
Total questions: 16
Worksheet time: 12mins
This image is.....
inverted and smaller
inverted and larger
not inverted and smaller
not inverted and larger
A real image...
is produced by virtual rays and can be projected on a screen
is produced by real rays and cannot be projected on a screen
is produced by virtual images and cannot be projected on a screen
is produced by real rays and can be projected on a screen
Where can you place an object in front of a convex lens but not create an image?
At 2F
At F
Beyond 2F
Before F
If an object is placed at the F point in front of a convex lens, which of the following will describe the image correctly ?
formed at infinity
highly magnified
real and inverted
Located beyond 2F
sharp image will not be created
If an object is placed at a point 2F infront of a converging lens, Which of the following will describe the image correctly ?
Real
Inverted
Same Size
Beyond 2F
If an object is placed between F & 2F points in front of a converging lens, which of the following will describe the image correctly. Select all that apply.
Real
Inverted
Larger
Located beyond 2F
Which lens represents the path light takes through a diverging lens?
The diagram represents a converging lens forming an image of an object. Which of the following lines show the focal length of the lens?
PQ
PR
QR
QS
A concave lens has an inward curved shape. It refracts light outward from the lens. They light rays spread apart as they exit the lens. Which represents a concave lens?
A
B
A and B
neither A or B
A concave lens will always produce a _____ image
Virtual, upright, smaller
Real, inverted, smaller
Real, inverted, larger
Virtual, upright, larger
Light travels from air (n = 1.000) into an optical fiber. If the angles of incidence and refraction are 22oand 15º respectively. what is the index of refraction inside the fiber? Round off your values to 3 sig. figs.
1.45
1.44
0.69
0.70
The index of refraction, is defined as the ratio of the speed of light in a vacuum (c = 3x10^8 m/s) to the speed of light in a medium. What is the index of refraction of a medium where the speed of light is 0.7c ? Round off your values to 3 sig. figs.
1.42
1.43
1.28
1.29
Light travels from air (n = 1.00) into a second material. The incident ray of light hits the surface at angle of 64o and the refracted ray enters the second material at an angle of 32o. What is the index of refraction of the second material? n1sin(Θ1) = n2sin(Θ2)
1.4
0.90
0.53
1.7
Light travels from water (n = 1.333) into an unknown medium. If the angles of incidence and refraction are 45oand 24º respectively. what is the index of refraction of the unknwon medium? Round off your values to 3 sig. figs.
2.32
2.31
0.77
0.76
There are certain angles of incidence for which the angle of refraction is close to 90°. What is this angle called?
Total internal angle
Critical angle
Reflection angle
Refracted angle
