COT Clinical Optics Exam Review Manual 2024 Actual
Questions and Answers with complete solution
The range of wavelengths in the visible spectrum is:
a) 100 to 400 nanometers
b) 400 to 800 nanometers
c) 450 to 650 nanometers
d) 400 to 800 meters (m)
400 to 800 nanometers
Immediately on either side of the visible spectrum are the invisible light segments
of:
a) Infrared and ultraviolet
b) X-rays and radio waves
c) Gamma rays and laser
d) Microwaves and radar
Infrared and ultraviolet
Which color has the longest wavelength?
a) Red has the longest wavelength: 650 nanometers.
Geometric optics includes:
The effects of media on the path of light
When light bounces back from an object, this is known as:
Reflection
In reflection, the light rays that hit the object or interface between media with
different indices of refraction are called:
Incident rays
In optics, a medium (or media, plural) is:
An object through which light passes
When light passes through a transparent medium, it may travel straight through
(Transmission or its path may be altered. This altering or bending property of a
medium is known as:
Refraction
The ray of light that enters a transparent medium is termed:
Incident ray
If light passes through a lens and the rays are spread apart on exiting, this is
known as:
Divergence
If light passes through a lens and the rays are bent toward each other on exiting,
this is known as:
Convergence
A comparison of the speed of light in air to the speed of light through a
substance is:
IR (Snell's Law)
The denser the substance, the more slowly light passes through it, and:
The higher the IR
The IR of crown glass is:
, 1.50
Light travelling through a prism will be bent toward the prism's:
base
The image of an object viewed through a prism:
Is virtual and shifted toward the apex
A 1.00 diopter prism bends light:
1 cm at a distance of 1 m from the prism
A 2.00 diopter prism displaces an object 1 cm at a distance of:
0.5 m
This displacement of an object 4 cm at a distance of 1 m would require prism of:
5.0 diopters
At a distance of 2 m a 12 diopter prism would displace an object:
24 cm
A spherical lens refracts light:
Equally in every direction
A 1.00 diopter spherical lens focuses light at:
1m
The pointer at which a lens forms an image (whether real or virtual is the:
Focal point
All of the following regarding the optical center of a lens is true except:
It always coincides with the geometric center of the lens
The focal length of a lens:
Is the distance between the lens and the focal point
Because the focal point of a minus lens is virtual, the focal length of a minus
lens:
Is likewise virtual
Which of the following is the formula for finding focal length?
P = 1/F
What is the focal length of 5 diopter lens?
0.2 m
A lens has a focal length of 33 cm. What is its dioptric power?
3 diopters
question 30
we good
All of the following regarding cylindrical lenses are true except:
They are plus power lenses
The direction of the line of light as focused by a plus power cylindrical lens:
Is aligned with the axis
Light passing through a cylindrical lens is focused in two lines perpendicular to
each other and separated by an area known as:
Sturm's interval
Light passing through a cylindrical lens is focused in two lines perpendicular to
each other and separated by an area
The light rays in the above-mentioned interval are projected in the shape of a:
Cone
Questions and Answers with complete solution
The range of wavelengths in the visible spectrum is:
a) 100 to 400 nanometers
b) 400 to 800 nanometers
c) 450 to 650 nanometers
d) 400 to 800 meters (m)
400 to 800 nanometers
Immediately on either side of the visible spectrum are the invisible light segments
of:
a) Infrared and ultraviolet
b) X-rays and radio waves
c) Gamma rays and laser
d) Microwaves and radar
Infrared and ultraviolet
Which color has the longest wavelength?
a) Red has the longest wavelength: 650 nanometers.
Geometric optics includes:
The effects of media on the path of light
When light bounces back from an object, this is known as:
Reflection
In reflection, the light rays that hit the object or interface between media with
different indices of refraction are called:
Incident rays
In optics, a medium (or media, plural) is:
An object through which light passes
When light passes through a transparent medium, it may travel straight through
(Transmission or its path may be altered. This altering or bending property of a
medium is known as:
Refraction
The ray of light that enters a transparent medium is termed:
Incident ray
If light passes through a lens and the rays are spread apart on exiting, this is
known as:
Divergence
If light passes through a lens and the rays are bent toward each other on exiting,
this is known as:
Convergence
A comparison of the speed of light in air to the speed of light through a
substance is:
IR (Snell's Law)
The denser the substance, the more slowly light passes through it, and:
The higher the IR
The IR of crown glass is:
, 1.50
Light travelling through a prism will be bent toward the prism's:
base
The image of an object viewed through a prism:
Is virtual and shifted toward the apex
A 1.00 diopter prism bends light:
1 cm at a distance of 1 m from the prism
A 2.00 diopter prism displaces an object 1 cm at a distance of:
0.5 m
This displacement of an object 4 cm at a distance of 1 m would require prism of:
5.0 diopters
At a distance of 2 m a 12 diopter prism would displace an object:
24 cm
A spherical lens refracts light:
Equally in every direction
A 1.00 diopter spherical lens focuses light at:
1m
The pointer at which a lens forms an image (whether real or virtual is the:
Focal point
All of the following regarding the optical center of a lens is true except:
It always coincides with the geometric center of the lens
The focal length of a lens:
Is the distance between the lens and the focal point
Because the focal point of a minus lens is virtual, the focal length of a minus
lens:
Is likewise virtual
Which of the following is the formula for finding focal length?
P = 1/F
What is the focal length of 5 diopter lens?
0.2 m
A lens has a focal length of 33 cm. What is its dioptric power?
3 diopters
question 30
we good
All of the following regarding cylindrical lenses are true except:
They are plus power lenses
The direction of the line of light as focused by a plus power cylindrical lens:
Is aligned with the axis
Light passing through a cylindrical lens is focused in two lines perpendicular to
each other and separated by an area known as:
Sturm's interval
Light passing through a cylindrical lens is focused in two lines perpendicular to
each other and separated by an area
The light rays in the above-mentioned interval are projected in the shape of a:
Cone
