Physics 1320 Final Palomino
7) Is light a wave or particle? A) particle B) wave C) both D) neither
c
28) The color of an object depends on the colors of A) the foreground. B) the light that illuminates them. C) molecules that comprise them.
b
3) Waves diffract the most when their wavelength is A) short. B) long. C) Both diffract the same.
b
50) Electromagnetic waves are longitudinal. A) True B) False
b
Light travels fastest in A) warm air. B) cool air. C) a vacuum.
c
) In which material does light travel fastest? A) air B) same for all C) glass D) plastic
a
20) According to the law of reflection of light, the angle of incidence is A) equal to the angle of reflection. B) smaller than the angle of reflection. C) greater than the angle of reflection.
a
22) Electromagnetic waves in a vacuum travel with the speed of light. A) True B) False
a
23) The color of an opaque object is the same as the light that is A) reflected. B) transmitted. C) absorbed. D) all of the above E) none of the above
a
24) What is the term for light energy that appears violet to red? A) visible spectrum B) ultraviolet spectrum C) radiant energy spectrum D) infrared spectrum E) none of the above
a
34) Which one of the following sets of characteristics describes the image formed by a plane mirror? A) virtual and upright B) virtual and larger than the object C) real and inverted D) virtual and inverted E) real and upright
a
35) If molecules in the sky scattered red-orange light strongly instead of blue light, sunsets would be A) blue. B) yellow. C) orange. D) green.
a
37) The image seen in a plane mirror is due to A) specular reflection. B) diffuse reflection. C) both of these D) neither of these
a
42) Two electromagnetic waves are traveling at the same speed. The wave with the higher wavelength A) has a lower frequency than the other wave. B) is traveling faster than the other wave. C) has a higher frequency than the other wave. D) is traveling slower than the other wave.
a
6) A little known fact is that both Robinson Crusoe and Friday wore eyeglasses. As it so happens, Robinson Crusoe was farsighted while Friday was nearsighted. Whose eyeglasses did they use whenever they wanted to start a fire by focusing the sunʹs rays? A) Robinson Crusoeʹs B) Fridayʹs C) Both would work equally well. D) Both actually worked, but Fridayʹs was a little bit better. E) Neitherʹs worked, but fortunately they were in possession of matches.
a
A blueberry will look black when illuminated with A) yellow light. B) red light. C) magenta light. D) cyan light.
a
A diver shines light up to the surface of a smooth pond at a 10° angle to the normal. Some light passes into the air above, and the part that reflects back into the water makes an angle to the normal of A) 10°. B) less than 10°. C) more than 10°
a
A diver shines light upward to the surface of a smooth pond at 20° to the normal. Most light passes into the air above while the part that reflects back into the water makes an angle to the normal of A) 20°. B) more than 20°. C) less than 20°. D) all refracts, none reflects.
a
A person of height h stands in front of a plane mirror. What is the minimum length of the mirror such that he can see his entire body? A) h/2 B) 2h C) h/4 D) h
a
A ʺwaveʺ could best be defined as A) a transfer of a disturbance from one point to another without any corresponding transfer of matter. B) a transfer of a disturbance from one point to another without any corresponding transfer of energy. C) a transfer of molecules from one point to another along the direction of motion, where the molecules are bunched into groups. D) a vibrational motion of matter.
a
Cell phone signals are transmitted by A) radio waves B) microwaves C) infrared waves D) visible light
a
The LEDs that make up the color on some TV screens are A) red, green, yellow. B) yellow, blue, green. C) red, blue, green. D) magenta, cyan, yellow.
a
To print cyan with a printer with C,Y,M ink, what colors of ink would it use? A) cyan B) blue C) yellow and magenta D) yellow and cyan
a
When you read from a printed page, youʹre seeing reflected light that is A) diffuse. B) specular. C) both of these D) neither of these
a
Which color of light gets through red glass? A) red B) none of these C) cyan
a
Which has the highest frequency? A) blue light. B) red light. C) green light. D) all the same
a
Which of these electromagnetic waves have the shortest wavelength? A) X-rays B) light waves C) ultraviolet waves D) infrared waves
a
Your friend says that any radio wave travels appreciably faster than any sound wave. A) agree with your friend unconditionally B) find a new friend C) agree with your friend for most common cases D) disagree with your friend
a
) Relative to ultraviolet waves, the wavelength of infrared waves is A) shorter. B) longer. C) the same.
b
19) If the frequency of a certain wave is 10 Hz, its period is A) 100 s. B) 0.1 s. C) 10 s. D) none of the above
b
26) To see his full height, Blinky Bill who is 1.0 meter tall needs a mirror that is at least A) 1 m tall. B) 0.50 m tall. C) 0.33 m tall. D) 0.75 m tall. E) depends on distance from the mirror
b
31) A yellow object is illuminated with yellow light and viewed through a blue filter. The object will appear A) blue B) black C) cyan D) yellow
b
36) Compared to the wavelength of incident light, diffuse reflection occurs when the size of surface irregularities is A) smaller. B) larger. C) about the same.
b
45) A green object is illuminated with yellow light and viewed through a cyan filter. The object will appear A) black B) green C) yellow D) cyan
b
46) Different colors of light correspond to different light A) intensities. B) frequencies. C) velocities. D) polarities. E) none of the above
b
47) The yellow clothes of a stage performer appear black when illuminated by light that is A) red. B) blue. C) green. D) all the above combined E) none of the above
b
5) The type of lens that brings parallel light rays together is a A) diverging lens. B) converging lens. C) combination of converging-diverging lens.
b
9) Two continuous waves having the same wavelength and amplitude pass through the same medium. They are aligned crest to crest and trough to trough so that they interfere. The resulting wave has A) twice the wavelength and twice the amplitude. B) the same wavelength and twice the amplitude. C) twice the wavelength and the same amplitude (or height) as each of the individual waves. D) zero amplitude. E) the same wavelength and the same amplitude.
b
A pair of sunglasses and a pair of clear reading glasses are left in the sunlight. The hotter glasses will be the A) reading glasses. B) sunglasses. C) both of these D) neither of these
b
A virtual image will not show up on a screen, and it cannot be photographed. A) True B) False
b
Complementary colors are two colors that A) are subtractive primary colors. B) produce white light when combined. C) share the same color scheme. D) are additive primary colors.
b
Diffuse reflection occurs when the size of surface irregularities is A) microscopic. B) large compared to the wavelength of the light used. C) small compared to the wavelength of the light used.
b
Materials generally become warmer when light is A) transmitted by them. B) absorbed by them. C) all of the above D) reflected by them.
b
The sensation of color is seen when light falls on the eyeʹs A) rods. B) cones. C) both of these D) neither of these
b
The time between successive wavesis called the: A) wavelength B) period C) frequency D) amplitude
b
True or False: An opaque object absorbs or reflects light, while a transparaent object allows light to not pass through. A) True B) False
b
What is the essential difference between microwaves and blue light? A) One is a form of radiation, the other is not. B) There is no essential difference in the nature of microwaves and blue light other than a difference in frequency and wavelength. C) Blue light is a beam of photons. Microwaves are not photons. D) One has an electric charge, the other does not. E) One undergoes refraction, the other does not.
b
You can get a sunburn while under the ʺshadeʺ of a beach umbrella due to A) light scattering in the air. B) reflected sunlight from the sand. C) refracted sunlight from the water. D) none of the above
b
) If only one color is reflected in the pigment of a particular blue paint, that color would be A) yellow. B) green. C) blue. D) red.
c
) If you walk toward a mirror at a certain speed, the relative speed between you and your image is A) half your speed. B) your speed. C) twice your speed. D) none of the above
c
) The white light from the Sun is a A) compliment of the surrounding blue sky. B) mixture of selected frequencies of light. C) composite of light of all the visible frequencies.
c
) To print blue with a printer with C,Y,M ink, what colors of ink would it use? A) blue B) yellow and magenta C) cyan and magneta D) yellow and cyan
c
25) In looking at yourself in a steamy mirror you wipe just enough moisture away to barely see a full view of your face. If you move back from the mirror youʹll see A) a bit less of your face. B) a bit more of your face. C) the same amount of your face
c
32) Consider the appearance of an American flag submerged deep in water. The white stars and red stripes appear A) red and black. B) cyan and blue. C) cyan and black. D) cyan and red.
c
33) If sunlight were green instead of white, the most comfortable color to wear on a hot day would be A) violet. B) yellow. C) green. D) blue. E) magenta.
c
38) The sky is blue because air molecules in the sky act as tiny A) prisms. B) mirrors that reflect only blue light. C) resonators that scatter blue light. D) sources of white light. E) none of the above
c
39) What is the term for the distance a light wave travels to complete one cycle? A) energy B) velocity C) wavelength D) frequency E) none of the above
c
4) Which of the following actions will increase the energy of light? A) Increase its wavelength. B) Decrease its frequency. C) Increase its frequency. D) Increase its speed.
c
40) A blue object will appear black when illuminated with A) light. B) cyan light. C) yellow light. D) blue light. E) none of the above
c
43) A laser beam strikes a plane mirrorʹs reflecting surface with an angle of incidence of 43°. What is the angle between the incident ray and the reflected ray? A) 43° B) 45° C) 86° D) 0° E) 90°
c
44) A magenta piece of paper absorbs what colors of light? A) none B) red and blue C) green D) yellow
c
49) Object and image for a plane mirror lie A) at right angles to each other. B) along the same plane. C) equal distances from the mirror. D) all of the above E) none of the above
c
A setting Sun appears red due to A) scattering of lower frequencies by larger particles in the air. B) lower frequencies of light emitted during sunset. C) lightʹs longer path through air at sunset. D) absorption by smaller particles in the air
c
If a light signal and a radio signal were emitted simultaneously from Alpha Centauri, the first to reach Earth would be the A) radio signal. B) light signal. C) both the same time
c
If the color spectrum ranges from red to violet, then it ranges from A) long wavelengths to short wavelengths. B) low frequencies to high frequencies. C) both of these D) neither of these
c
In the periphery of our vision, we are A) insensitive to color and movement. B) more sensitive to low frequencies than high ones. C) sensitive to movement, but cannot see color. D) sensitive to both movement and color.
c
Most of the waves in the electromagnetic spectrum are A) green light. B) blue light. C) invisible. D) red light. E) yellow light
c
Stare at a red wall for a few minutes and then gaze at a white wall. Due to retina fatigue you see A) more red. B) black. C) cyan.
c
The LEDs that make up the color on some TV screens are A) red, green, yellow. B) yellow, blue, green. C) red, blue, green. D) magenta, cyan, yellow.
c
The solar radiation curve is a graph of A) intensity versus distance from the Sun. B) the path of the Sun about Earth. C) brightness versus frequency. D) colors of sunlight versus their frequencies. E) colors of sunlight versus their wavelengths.
c
What characteristic of light mostly relates to color? A) both of these B) amplitude C) frequency
c
What color would be observed when looking at white light through a red filter over a green filter? A) red B) yello C) black D) magenta
c
What color would be observed when looking at white light through a yellow filter over a magenta filter? A) black B) magenta C) red D) yellow
c
) If an electron vibrates up and down 1000 times each second, it generates an electromagnetic wave having a A) period of 1000 s. B) speed of 1000 m/s. C) wavelength of 1000 m. D) frequency of 1000 Hz. E) amplitude of 1000 m.
d
) Which statement about images is correct? A) A virtual image cannot be photographed. B) A real image cannot be photographed. C) A real image must be upright. D) A virtual image cannot be formed on a screen. E) Mirrors always produce real images because they reflect light.
d
1) The critical angle for a beam of light passing from water into air is 48.8°. This means that all light rays with an angle of incidence in the water that is greater than 48.8° will be A) partially reflected and partially transmitted. B) totally transmitted. C) totally absorbed by the water. D) totally reflected.
d
2) Farsightedness can usually be corrected with A) convex mirrors. B) concave mirrors. C) diverging lenses. D) converging lenses. E) cylindrical lenses.
d
29) Which one of the following is the correct representation of the relationship between the speed of a wave ( v), frequency of the wave (f), and its wavelength (λ)? A) v = 2λ B) v = f/λ C) v = λ/f D) v = fλ E) v = 2f
d
30) Light travels fastest A) through plastic. B) through diamond. C) through water. D) in a vacuum. E) through glass.
d
41) If the atmosphere were about 40 times thicker, at noon the Sun would appear A) green-blue. B) blue-violet. C) orange-green. D) red-orange. E) none of the above
d
8) The secondary rainbow is dimmer than the primary rainbow mainly because A) its colors are inverted. B) it is farther from the viewer. C) it is larger, and its energy is spread over more area. D) of an extra reflection and refraction in the drops. E) it simply has less energy than the primary bow.
d
A white boat sunk in water where sunlight is dim appears A) red. B) yellow. C) no color-black. D) cyan.
d
Complementary colors are two colors that A) are additive primary colors. B) are subtractive primary colors. C) are right for each other. D) produce white light when added together. E) look good together.
d
Fermatʹs principle applies to A) refraction. B) reflection. C) neither of these D) both of these
d
Is it possible to see a virtual image? A) No, since virtual images do not really exist. B) No, since the rays that seem to emanate from a virtual image do not in fact emanate from the image. C) Yes, but only by using an additional lens to form a real image before the light reaches the eye. D) Yes because the rays that appear to come from a virtual image can be focused by the eye just like those from an object.
d
The greenish blue of water is evidence of the A) reflection of greenish-blue light. B) absorption of greenish-blue light. C) reflection of red light. D) absorption of red light. E) interaction between green and blue frequencies of light.
d
When sunlight illuminates a page from your Conceptual Physics book it A) absorbs at the text lettering. B) reflects most of it. C) neither of these D) both of these
d
Which statement about images is correct? A) Mirrors always produce real images because they reflect light. B) A real image must be erect. C) A virtual image cannot be photographed. D) A virtual image cannot be formed on a screen. E) A virtual image cannot be viewed by the unaided eye.
d
Your image in a plane mirror is A) real. B) both of these C) neither of these D) virtual.
d
) Which of the following materials has the slowest speed of light? A) glass B) oil C) water D) air E) diamond
e
27) The three colors that comprise the image on a TV screen are A) magenta, cyan, and yellow. B) yellow, blue, and green. C) red, green, and yellow. D) red, blue, and yellow. E) red, blue, and green.
e
45) What color would a yellow object when illuminated with a cyan light appear? A) black B) blue C) cyan D) yellow E) green
e
48) The main difference between a radio wave and a red light wave is its A) wavelength. B) frequency. C) speed. D) all of the above E) two of these
e
A fast-moving ball is more easily seen if it is A) orange. B) purple. C) red. D) violet. E) yellow-green.
e
As you walk away from a plane mirror on a wall, the height of your image A) gets smaller. B) changes from being a virtual image to a real image as you pass the focal point. C) is always a real image, no matter how far you are from the mirror. D) may or may not get smaller, depending on where the observer is positioned. E) is always the same size.
e
The brightest color emitted by the Sun is A) orange. B) red. C) violet. D) green-blue. E) yellow-green.
e
The image formed in a plane mirror is A) at the same distance in front of the mirror as the object is in front of the mirror. B) at a larger distance behind the mirror than the distance the object is in front of the mirror. C) a real image behind the mirror. D) at a shorter distance behind the mirror than the distance the object is in front of the mirror. E) at the same distance behind the mirror as the object is in front of the mirror.
e
Which one of the following is not an electromagnetic wave? A) radio waves B) infrared C) gamma rays D) UV E) sound waves
e
Which one of the following lists gives the correct order of the electromagnetic spectrum from low to high frequencies? A) radio waves, ultraviolet, x-rays, microwaves, infrared, visible, gamma rays B) radio waves, infrared, microwaves, ultraviolet, visible, x-rays, gamma rays C) radio waves, infrared, x-rays, microwaves, ultraviolet, visible, gamma rays D) radio waves, microwaves, visible, x-rays, infrared, ultraviolet, gamma rays E) radio waves, microwaves, infrared, visible, ultraviolet, x-rays, gamma rays
e
Which one of the following numbers is the correct magnification produced by a plane mirror? A) 1/4 B) 2 C) 3/2 D) 1/2 E) 1
e
