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### 37 Matching questions

1. When the reflection of an object is seen in a flat mirror, the distance from the mirror to the image depends on
2. In a vacuum, electromagnetic radiation of short wavelengths
3. The farther light is from a source,
4. Which portion of the electromagnetic spectrum is used in a television?
5. A concave mirror forms a real image at 25,0 cm from the mirror surface along the principal axis. If the corresponding object is at a 10.0 cm distance, what is the mirror's focal length?
6. When red light is compared with violet light,
7. Object distance, image distance, and radius of curvature are ____ for curved mirrors.
8. Which of the following best describes the image produced by a flat mirror?
9. If you stand 3.0 m in front of a flat mirror, how far away from you would your image be in the mirror?
10. A convex mirror with a focal length of -20.0 cm has an object 30.0 cm in front of the mirror. what is the value of q or the corresponding image?
11. What is the wavelength of an infrared wave with frequency 4.2 x 10^14 Hz?
12. What is the wavelength of microwaves of 3.0 x 10^9 Hz frequency?
13. Which best describes the image of a concave mirror when the object's distance from the mirror is less than the focal-point distance?
14. If a light ray strikes a flat mirror at an angle of 14° from the normal, the reflected ray will be
15. Snow reflects almost all of the light incident upon it. However, a single beam of light is not reflected in the form of parallel rays. This is an example of ____ reflection off a ____ surface.
16. When two parallel mirrors are placed so that their reflective sides face each other, ____ images form. This is because the image in one mirror becomes the ____ for the other mirror.
17. A concave mirror with a focal length of 10.0 cm creates a real imagine 30.0 cm away on its principal axis. How far from the mirror is the corresponding object?
18. What is the frequency of infrared light of 1.0 x 10^-4 m wavelength
19. For a spherical mirror, the focal length is equal to ____ the radius of curvature of the mirror.
20. A highly polished finish on a new car provides a ____ surface for ____ reflection.
21. Which of the following is not an a primary subtractive color?
22. an object is 29 cm away from a concave mirror's surface along the principal axis. If the mirror's focal length is 9.50 cm, how far away is the corresponding image?
23. When a straight line is drawn perpendicular to a flat mirror at the point where an incoming ray strikes the mirror's surface, the angles of incidence and reflection are measured from the normal and
24. A mirror has an object located on its principal axis 40.0 cm from the mirror's surface. A virtual image is formed 15.0 m behind the mirror. What is the mirror's focal length?
25. Which portion of the electromagnetic spectrum is used in a microscope?
26. As the angle between the electric-field waves and the transmission axis increases,
27. The mirror equation and ray diagrams are valid concepts only for what type of rays?
28. If a light ray strikes a flat mirror at an angle of 30° from the normal, the ray will be reflected at an angle of
29. When incoming rays of light strike a flat mirror at an angle close to the surface of the mirror, the reflected rays are
30. When red light and green light shine on the same place on a piece of white paper, the spot appears to be
31. If you know the wavelength of any form of electromagnetic radiation, you can determine its frequency because
32. If you are reading a book and you move twice as far away from the light source, how does the brightness at the new distance compare with that at the old distance? It is
33. If you looked at a light through the lenses from two polarizing sunglasses that were overlapped at right angles to each other
34. The image of an object in a flat mirror is always
35. Which of the following is not an additive primary color?
36. The relationship between frequency, wavelength, and speed holds for light waves because
37. What type of mirror is used whenever a magnified image of an object is needed?
1. a virtual, upright, and magnification equal to one
2. b 60° from the mirror's surface.
3. c diffuse, rough
5. e none of the light would pass through.
6. f 3.0 x 10^12 Hz
7. g the angles of incidence and reflection are equal.
8. h interdependent
9. i the distance from the object to the mirror.
10. j 15 cm
11. k -12 cm
12. l the more spread out light becomes.
13. m all forms of electromagnetic radiation travel at different speeds.
14. n visible light
15. o blue
16. p the component of light that passes through the polarizer decreases and the brightness of light decreases.
17. q 14 cm
18. r -24.0 cm
19. s multiple, object
20. t yellow.
21. u smooth, specular
22. v convex mirror
23. w all wavelengths travel at the same speed.
24. x 0.10 m
25. y yellow
26. z one-half
27. aa travels as fast as radiation of long wavelengths.
28. ab 7.14 cm
29. ac one-fourth as bright.
30. ad 14° from the normal.
31. ae both travel at the same speed.
32. af the same size as the object.
33. ag 6.0 m
34. ah close to the mirror's surface.
35. ai virtual, upright, and magnification greater than one
36. aj paraxial rays
37. ak 7.1 x 10^-7 m