WorksheetsOptics Test Review
Total questions: 29
Worksheet time: 1hrs 27mins
A 25.0 m object is placed 30.0 m from a convex lens, which has a focal length of 5.0 m. What is the distance of the image?
6 m
7 m
8 m
9 m
Which figure represents the path light takes through a converging lens?
A ray of light traveling from air into crown glass (n = 1.523) strikes the surface at an angle of 40 degrees. What will the
angle of refraction be?
0.49
24.96
0.39
37.28
If an object placed 10.0 cm in front of the lens produces an image 15 cm from the lens on the opposite side, what is the magnitude of the focal length for the lens?
5.00 cm
6.00 cm
25.0 cm
30.0 cm
How does the density of glass compare to the density of air?
Equal
Glass has a greater density.
Air has a greater density.
Impossible to say
What type of reflection is shown in the image?
Regular reflection
Diffuse reflection
Total internal reflection
Which TWO of the following statements about total internal reflection is true?
Total internal reflection can occur when light moves from a less dense medium to a more dense medium.
Total internal reflection occurs when the angle of incidence is the same as the critical angle.
When the angle of incidence is greater than the critical angle, total internal reflection occurs.
Total internal reflection can occur when light moves from a more dense medium to a less dense medium.
A converging lens produces an image twice the size of the original. If the object is placed 0.40 m from the lens, and the image produced is 0.80 m from the lens. What is the optical power of the lens?
2.849 D
3.745 D
2.403 D
8.929 D
Choose all correct statements for a virtual image
Cannot be projected on to a screen
Can be projected on to a screen
Light rays do not pass through image
Light rays do pass through image
Describe the image that will be formed by this lens diagram? (Look at where the lines intersect and draw an arrow)
Enlarged, Upright, Virtual
Reduced, Inverted, Real
Enlarged, Upright, Real
Reduced, Upright, Virtual
A magnifying glass is used to enlarge a 2-cm tall picture up to a height of 5.5 cm tall. What is the magnification of this lens, and what type of lens would make this image?
0.36; convex
0.36; concave
2.75; convex
2.75; concave
Your image behind a plane mirror is at a distance equal to
a. half your height.
b. half your distance from the mirror.
c. your distance in front of the mirror.
d. slightly more than your distance in front of the mirror.
