Question 1

A fish's eye is well-suited to seeing under water, but what can you say about his vision if he is taken out of water?

Accepted Answer

A)  He would be nearsighted. 
B)  His vision would be limited to a cone of half-angle of about 49°. 
C)  He would suffer from astigmatism. 
D)  He would be farsighted. 
E)  His acuity (sharpness of vision) would be greater. 
A)  He would be nearsighted. 
B)  His vision would be limited to a cone of half-angle of about 49°. 
C)  He would suffer from astigmatism. 
D)  He would be farsighted. 
E)  His acuity (sharpness of vision) would be greater. A

Question 2

Choose from the following:
-Match vitreous humor to the best description below.

Accepted Answer

A)  composed of microscopic glassy fibers that slide over each other 
B)  a jelly-like substance that fills most of the eye 
C)  a circular diaphragm 
D)  relays signals to the brain 
E)  the central hole
F) a curved transparent tissue where light first enters the eye
G) photosensitive receptor cells of which the retina is composed
H) a light-sensitive surface, upon which the image falls 
A)  composed of microscopic glassy fibers that slide over each other 
B)  a jelly-like substance that fills most of the eye 
C)  a circular diaphragm 
D)  relays signals to the brain 
E)  the central hole
F) a curved transparent tissue where light first enters the eye
G) photosensitive receptor cells of which the retina is composed
H) a light-sensitive surface, upon which the image falls B

Question 3

If a person's eyeball is too long from front to back, the person is likely to suffer from

Accepted Answer

A)  farsightedness. 
B)  spherical aberration. 
C)  astigmatism. 
D)  nearsightedness. 
E)  chromatic aberration. 
A)  farsightedness. 
B)  spherical aberration. 
C)  astigmatism. 
D)  nearsightedness. 
E)  chromatic aberration. D

Question 4

Which of the following binoculars would be best for observing very faint comets among the stars?

Accepted Answer

A)  12 × 50 
B)  7 × 60 
C)  8 × 50 
D)  5 × 20 
E)  10 × 35 
A)  12 × 50 
B)  7 × 60 
C)  8 × 50 
D)  5 × 20 
E)  10 × 35

Question 5

Assuming a pupil diameter of 3. mm, what is the angular resolution of the human eye at the middle of the visible spectrum (550. nm)?

Accepted Answer

A)  0.2 arc-minute 
B)  0.8 arc-minute 
C)  0.2 degree 
D)  2. milliradian 
E)  0.8 degree 
A)  0.2 arc-minute 
B)  0.8 arc-minute 
C)  0.2 degree 
D)  2. milliradian 
E)  0.8 degree

Question 6

The resolving power of a microscope refers to the ability to

Accepted Answer

A)  form a very bright image. 
B)  distinguish objects of different colors. 
C)  form a very large image. 
D)  form clear images of two points that are very close together. 
E)  form a very microscopic image. 
A)  form a very bright image. 
B)  distinguish objects of different colors. 
C)  form a very large image. 
D)  form clear images of two points that are very close together. 
E)  form a very microscopic image.

Question 7

Choose from the following:
-Match retina to the best description below.

Accepted Answer

A)  composed of microscopic glassy fibers that slide over each other 
B)  a jelly-like substance that fills most of the eye 
C)  a circular diaphragm 
D)  relays signals to the brain 
E)  the central hole
F) a curved transparent tissue where light first enters the eye
G) photosensitive receptor cells of which the retina is composed
H) a light-sensitive surface, upon which the image falls 
A)  composed of microscopic glassy fibers that slide over each other 
B)  a jelly-like substance that fills most of the eye 
C)  a circular diaphragm 
D)  relays signals to the brain 
E)  the central hole
F) a curved transparent tissue where light first enters the eye
G) photosensitive receptor cells of which the retina is composed
H) a light-sensitive surface, upon which the image falls

Question 8

Kelli examines her new ruby ring with the jeweler's "loop". The ruby appears 7.0 times larger. If her near point is 35. cm, what is the focal length of the lens?

Accepted Answer

A)  42. mm 
B)  67. mm 
C)  70. mm 
D)  36. mm 
E)  58 mm 
A)  42. mm 
B)  67. mm 
C)  70. mm 
D)  36. mm 
E)  58 mm

Question 9

Explain how the eye and a camera differ in adjusting for a change in focus.

Accepted Answer

The camera lens has a fixed focal length

Question 10

Mixing pigments is an example of the ________ method of color production.

Accepted Answer

A)  "tri-color" 
B)  subtractive 
C)  complementary 
D)  composite 
E)  additive 
A)  "tri-color" 
B)  subtractive 
C)  complementary 
D)  composite 
E)  additive

Question 11

Jennifer bought a 7 × 25 pair of binoculars for observing baseball. The 25 describes the

Accepted Answer

A)  magnification. 
B)  f/number. 
C)  aperture in mm. 
D)  aperture in cm. 
E)  (f/number)-1 
A)  magnification. 
B)  f/number. 
C)  aperture in mm. 
D)  aperture in cm. 
E)  (f/number)-1

Question 12

Color blindness is caused by

Accepted Answer

A)  a missing rod-type. 
B)  lack of melanin. 
C)  cataracts. 
D)  damage to the retina. 
E)  a missing cone-type. 
A)  a missing rod-type. 
B)  lack of melanin. 
C)  cataracts. 
D)  damage to the retina. 
E)  a missing cone-type.

Question 13

Choose from the following:
-Match cornea to the best description below.

Accepted Answer

A)  composed of microscopic glassy fibers that slide over each other 
B)  a jelly-like substance that fills most of the eye 
C)  a circular diaphragm 
D)  relays signals to the brain 
E)  the central hole
F) a curved transparent tissue where light first enters the eye
G) photosensitive receptor cells of which the retina is composed
H) a light-sensitive surface, upon which the image falls 
A)  composed of microscopic glassy fibers that slide over each other 
B)  a jelly-like substance that fills most of the eye 
C)  a circular diaphragm 
D)  relays signals to the brain 
E)  the central hole
F) a curved transparent tissue where light first enters the eye
G) photosensitive receptor cells of which the retina is composed
H) a light-sensitive surface, upon which the image falls

Question 14

The near point with age usually

Accepted Answer

A)  steadily decreases. 
B)  steadily increases. 
C)  increases and then decreases. 
D)  approaches 25. cm. 
A)  steadily decreases. 
B)  steadily increases. 
C)  increases and then decreases. 
D)  approaches 25. cm.

Question 15

Consider a camera with a 20. cm diameter lens recording images at 600. nm wavelength.
(a) What is the angular resolution limit? 
(b) What is the minimum sized features which can be resolved on Mars (at a distance of 9.0 × 107 km) with this lens?

Accepted Answer

(a) 3.7 × 10^-6 radian

Question 16

If a red filter were placed in front of blue dungarees, you would see

Accepted Answer

A)  green. 
B)  red. 
C)  white. 
D)  black. 
E)  blue. 
A)  green. 
B)  red. 
C)  white. 
D)  black. 
E)  blue.

Question 17

Christie bought a 9 × 50 pair of binoculars for stellar observing. The 9 is the

Accepted Answer

A)  (f/number)-1 
B)  aperture in mm. 
C)  f/number. 
D)  aperture in cm. 
E)  angular magnification. 
A)  (f/number)-1 
B)  aperture in mm. 
C)  f/number. 
D)  aperture in cm. 
E)  angular magnification.

Question 18

What is the minimum distance of two points on the moon that can be just resolved by the Keck 10. meter telescope in Hawaii (use a wavelength of 600. nm, lunar distance of 380. thousand Km) 
(a) if there were no atmosphere?
(b) if the atmosphere limits resolution to 0.2 arc-sec?

Accepted Answer

(a) 28. me

Question 19

The principal refraction of light by the eye occurs at the

Accepted Answer

A)  cornea. 
B)  retina. 
C)  sclera. 
D)  lens. 
E)  iris. 
A)  cornea. 
B)  retina. 
C)  sclera. 
D)  lens. 
E)  iris.

Question 20

With what color light would you expect to be able to see the greatest detail when using a microscope?

Accepted Answer

A)  blue, because of its shorter wavelength 
B)  red, because it is refracted less than other colors by glass 
C)  blue, because it is brighter 
D)  red, because of its long wavelength 
E)  The color makes no difference in the resolving power, since this is determined only by the diameter of the lenses. 
A)  blue, because of its shorter wavelength 
B)  red, because it is refracted less than other colors by glass 
C)  blue, because it is brighter 
D)  red, because of its long wavelength 
E)  The color makes no difference in the resolving power, since this is determined only by the diameter of the lenses.

Exam 25: Vision and Optical Instruments

A fish's eye is well-suited to seeing under water, but what can you say about his vision if he is taken out of water?

Choose from the following: -Match vitreous humor to the best description below.

If a person's eyeball is too long from front to back, the person is likely to suffer from

Which of the following binoculars would be best for observing very faint comets among the stars?

Assuming a pupil diameter of 3. mm, what is the angular resolution of the human eye at the middle of the visible spectrum (550. nm)?

The resolving power of a microscope refers to the ability to

Choose from the following: -Match retina to the best description below.

Kelli examines her new ruby ring with the jeweler's "loop". The ruby appears 7.0 times larger. If her near point is 35. cm, what is the focal length of the lens?

Explain how the eye and a camera differ in adjusting for a change in focus.

Mixing pigments is an example of the ________ method of color production.

Jennifer bought a 7 × 25 pair of binoculars for observing baseball. The 25 describes the

Color blindness is caused by

Choose from the following: -Match cornea to the best description below.

The near point with age usually

Consider a camera with a 20. cm diameter lens recording images at 600. nm wavelength. (a) What is the angular resolution limit? (b) What is the minimum sized features which can be resolved on Mars (at a distance of 9.0 × 107 km) with this lens?

If a red filter were placed in front of blue dungarees, you would see

Christie bought a 9 × 50 pair of binoculars for stellar observing. The 9 is the

What is the minimum distance of two points on the moon that can be just resolved by the Keck 10. meter telescope in Hawaii (use a wavelength of 600. nm, lunar distance of 380. thousand Km) (a) if there were no atmosphere? (b) if the atmosphere limits resolution to 0.2 arc-sec?

The principal refraction of light by the eye occurs at the

With what color light would you expect to be able to see the greatest detail when using a microscope?

Measurement and Problem Solving

Kinematics: Description of Motion

Motion in Two Dimensions

Force and Motion

Work and Energy

Linear Momentum and Collisions

Circular Motion and Gravitation

Rotational Motion and Equilibrium

Solids and Fluids

Temperature and Kinetic Theory

Heat

Thermodynamics

Vibrations and Waves

Sound

Electric Charge, Forces, and Fields

Electric Potential, Energy, and Capacitance

Electric Current and Resistance

Basic Electric Circuits

Magnetism

Electromagnetic Induction and Waves

AC Circuits

Reflection and Refraction of Light

Mirrors and Lenses

Physical Optics: The Wave Nature of Light

Relativity

Quantum Physics

Quantum Mechanics and Atomic Physics

The Nucleus

Nuclear Reactions and Elementary Particles

Filters

Consider a camera with a 20. cm diameter lens recording images at 600. nm wavelength. (a) What is the angular resolution limit? (b) What is the minimum sized features which can be resolved on Mars (at a distance of 9.0 × 10⁷ km) with this lens?