Question 1

Which one of the following statements about rods and cones is not correct?

Accepted Answer

A)  There are far more cones than rods in each eye. 
B)  Cone pigments are much less sensitive to light than rod pigments. 
C)  The fovea contains only cones. 
D)  Cones are wider than rods near the fovea. 
A)  There are far more cones than rods in each eye. 
B)  Cone pigments are much less sensitive to light than rod pigments. 
C)  The fovea contains only cones. 
D)  Cones are wider than rods near the fovea. A

Question 2

The function describing energy emitted by a light source as a function of wavelength is called its

Accepted Answer

A)  Spectral reflectance function 
B)  Spectral power distribution 
C)  Colour spectrum 
D)  The illuminant function. 
A)  Spectral reflectance function 
B)  Spectral power distribution 
C)  Colour spectrum 
D)  The illuminant function. B

Question 3

Which of the following statements about visual angle is not correct? Visual angle:

Accepted Answer

A)  is the angle between the lines of sight of the two eyes. 
B)  can be calculated using trigonometry. 
C)  is the angle subtended by an object at the centre of the lens. 
D)  depends jointly on the size of object size and viewing distance. 
A)  is the angle between the lines of sight of the two eyes. 
B)  can be calculated using trigonometry. 
C)  is the angle subtended by an object at the centre of the lens. 
D)  depends jointly on the size of object size and viewing distance. A

Question 4

To achieve a high level of sensitivity at low light levels is would be best to have:

Accepted Answer

A)  High image magnification 
B)  A small eye 
C)  Closely spaced photoreceptors 
D)  A large number of rod photoreceptors 
A)  High image magnification 
B)  A small eye 
C)  Closely spaced photoreceptors 
D)  A large number of rod photoreceptors

Question 5

Which one of the following is unlikely to result in a decrease in pupil size?

Accepted Answer

A)  entering brightly lit room 
B)  Scotopic light levels 
C)  normal aging 
D)  boredom 
E)  Divergence of the eyes 
A)  entering brightly lit room 
B)  Scotopic light levels 
C)  normal aging 
D)  boredom 
E)  Divergence of the eyes

Question 6

The diameter of the pupil varies between approximately

Accepted Answer

A)  10-15 mm 
B)  7-10 mm 
C)  0.5-2 mm 
D)  2-7 mm 
A)  10-15 mm 
B)  7-10 mm 
C)  0.5-2 mm 
D)  2-7 mm

Question 7

Which term describes aged-related loss in accommodative range?

Accepted Answer

A)  Presbyacusis 
B)  Myopia 
C)  Presbyopia 
D)  Hyperopia 
A)  Presbyacusis 
B)  Myopia 
C)  Presbyopia 
D)  Hyperopia

Question 8

Which one of following terms correctly describes the jerky, rapid, eye movement used to shift eye direction?

Accepted Answer

A)  Pursuit movement 
B)  Saccade 
C)  Optokinetic nystagmus 
D)  Vestibular-ocular movement 
A)  Pursuit movement 
B)  Saccade 
C)  Optokinetic nystagmus 
D)  Vestibular-ocular movement

Question 9

Which of the following is defined as a measure of relative luminance?

Accepted Answer

A)  Intensity 
B)  Wavelength 
C)  Reflectance 
D)  Contrast 
A)  Intensity 
B)  Wavelength 
C)  Reflectance 
D)  Contrast

Question 10

Luminous energy emitted by an extended light source is measure in which units?

Accepted Answer

A)  Watts 
B)  Candelas 
C)  Radiant flux 
D)  Trolands 
A)  Watts 
B)  Candelas 
C)  Radiant flux 
D)  Trolands

Question 11

Binocular fixation on a point close to the observer requires:

Accepted Answer

A)  Parallel lines of sight in the two eyes 
B)  A large convergence angle 
C)  Monocular vision 
D)  No accommodation 
A)  Parallel lines of sight in the two eyes 
B)  A large convergence angle 
C)  Monocular vision 
D)  No accommodation

Question 12

Which property of light is important for understanding how it behaves when passing through small apertures? Light as

Accepted Answer

A)  Rays. 
B)  Particles. 
C)  Waves. 
D)  Energy 
A)  Rays. 
B)  Particles. 
C)  Waves. 
D)  Energy

Question 13

Who first proposed the theory of quantum mechanics, in which light is both a wave and a particle?

Accepted Answer

A)  Albert Einstein 
B)  Max Planck 
C)  Thomas Young 
D)  James Clerk Maxwell 
E)  Isaac Newton 
A)  Albert Einstein 
B)  Max Planck 
C)  Thomas Young 
D)  James Clerk Maxwell 
E)  Isaac Newton

Question 14

Which one of the following eye movements is triggered by head deceleration or acceleration?

Accepted Answer

A)  Optokinetic nystagmus 
B)  Vergence eye movement 
C)  Vestibular-ocular movement 
D)  Saccade 
A)  Optokinetic nystagmus 
B)  Vergence eye movement 
C)  Vestibular-ocular movement 
D)  Saccade

Question 15

Ray properties of light are useful for:

Accepted Answer

A)  Explaining interference patterns. 
B)  Understanding how images are formed by optical devices. 
C)  Explaining colour sensations. 
D)  Explaining sensitivity in low light. 
A)  Explaining interference patterns. 
B)  Understanding how images are formed by optical devices. 
C)  Explaining colour sensations. 
D)  Explaining sensitivity in low light.

Question 16

Which of the following does not contribute to increased spatial resolution in the eye?

Accepted Answer

A)  Long photoreceptor length 
B)  Long focal length 
C)  Small receptor spacing 
D)  Small inter-receptor angle 
A)  Long photoreceptor length 
B)  Long focal length 
C)  Small receptor spacing 
D)  Small inter-receptor angle

Question 17

Optical power is expressed in which one of the following measures?

Accepted Answer

A)  Dioptres 
B)  nm 
C)  candelas 
D)  Visual angle 
A)  Dioptres 
B)  nm 
C)  candelas 
D)  Visual angle

Question 18

Which of the following is the range in which humans can typically detect wavelength?

Accepted Answer

A)  400 to 700 nm 
B)  40 to 70 nm 
C)  700 to 1400 nm 
D)  400 to 800 nm 
E)  300 to 600 nm 
A)  400 to 700 nm 
B)  40 to 70 nm 
C)  700 to 1400 nm 
D)  400 to 800 nm 
E)  300 to 600 nm

Question 19

Which one of the following is the correct sequence of colours in the visible spectrum?

Accepted Answer

A)  yellow- red-orange-green-blue-indigo-violet 
B)  orange-red- yellow-green-blue-indigo-violet 
C)  red-orange-yellow-green-blue-violet- indigo 
D)  red-orange-yellow-green-blue-indigo-violet 
A)  yellow- red-orange-green-blue-indigo-violet 
B)  orange-red- yellow-green-blue-indigo-violet 
C)  red-orange-yellow-green-blue-violet- indigo 
D)  red-orange-yellow-green-blue-indigo-violet

Which one of the following statements about rods and cones is not correct?

The function describing energy emitted by a light source as a function of wavelength is called its

Which of the following statements about visual angle is not correct? Visual angle:

To achieve a high level of sensitivity at low light levels is would be best to have:

Which one of the following is unlikely to result in a decrease in pupil size?

The diameter of the pupil varies between approximately

Which term describes aged-related loss in accommodative range?

Which one of following terms correctly describes the jerky, rapid, eye movement used to shift eye direction?

Which of the following is defined as a measure of relative luminance?

Luminous energy emitted by an extended light source is measure in which units?

Binocular fixation on a point close to the observer requires:

Which property of light is important for understanding how it behaves when passing through small apertures? Light as

Who first proposed the theory of quantum mechanics, in which light is both a wave and a particle?

Which one of the following eye movements is triggered by head deceleration or acceleration?

Ray properties of light are useful for:

Which of the following does not contribute to increased spatial resolution in the eye?

Optical power is expressed in which one of the following measures?

Which of the following is the range in which humans can typically detect wavelength?

Which one of the following is the correct sequence of colours in the visible spectrum?

General Principles

The Chemical Senses

The Body Senses

The Physics and Biology of Audition

Perception of Sound

Visual Physiology

Colour Vision

Spatial Vision

Shape and Object Perception

Depth Perception

Visual Motion Perception

Multisensory Processing in Perception

Attention and Perception

Individual Differences in Perception

Filters

Exam 6: The Physics of Vision & Light and the Eye

Which one of the following statements about rods and cones is not correct?

The function describing energy emitted by a light source as a function of wavelength is called its

Which of the following statements about visual angle is not correct? Visual angle:

To achieve a high level of sensitivity at low light levels is would be best to have:

Which one of the following is unlikely to result in a decrease in pupil size?

The diameter of the pupil varies between approximately

Which term describes aged-related loss in accommodative range?

Which one of following terms correctly describes the jerky, rapid, eye movement used to shift eye direction?

Which of the following is defined as a measure of relative luminance?

Luminous energy emitted by an extended light source is measure in which units?

Binocular fixation on a point close to the observer requires:

Which property of light is important for understanding how it behaves when passing through small apertures? Light as

Who first proposed the theory of quantum mechanics, in which light is both a wave and a particle?

Which one of the following eye movements is triggered by head deceleration or acceleration?

Ray properties of light are useful for:

Which of the following does not contribute to increased spatial resolution in the eye?

Optical power is expressed in which one of the following measures?

Which of the following is the range in which humans can typically detect wavelength?

Which one of the following is the correct sequence of colours in the visible spectrum?

General Principles

The Chemical Senses

The Body Senses

The Physics and Biology of Audition

Perception of Sound

Visual Physiology

Colour Vision

Spatial Vision

Shape and Object Perception

Depth Perception

Visual Motion Perception

Multisensory Processing in Perception

Attention and Perception

Individual Differences in Perception

Filters