COT CLINICAL OPTICS EXAM REVIEW
MANUAL 2025 ACTUAL QUESTIONS WITH
100% CORRECT 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) ANSWER>>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 ANSWER>>Infrared and ultraviolet
Which color has the longest wavelength? ANSWER>>a) Red has the longest
wavelength: 650 nanometers.
Geometric optics includes: ANSWER>>The effects of media on the path of light
When light bounces back from an object, this is known as: ANSWER>>Reflection
In reflection, the light rays that hit the object or interface between media with different
indices of refraction are called: ANSWER>>Incident rays
In optics, a medium (or media, plural) is: ANSWER>>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: ANSWER>>Refraction
The ray of light that enters a transparent medium is termed: ANSWER>>Incident ray
If light passes through a lens and the rays are spread apart on exiting, this is known as:
ANSWER>>Divergence
If light passes through a lens and the rays are bent toward each other on exiting, this is
known as: ANSWER>>Convergence
A comparison of the speed of light in air to the speed of light through a substance is:
ANSWER>>IR (Snell's Law)
, The denser the substance, the more slowly light passes through it, and:
ANSWE
R>>The higher the IR
The IR of crown glass is: ANSWER>>1.50
Light travelling through a prism will be bent toward the prism's: ANSWER>>base
The image of an object viewed through a prism: ANSWER>>Is virtual and shifted
toward the apex
A 1.00 diopter prism bends light: ANSWER>>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: ANSWER>>0.5 m
This displacement of an object 4 cm at a distance of 1 m would require prism of: Ans -
5.0 diopters
At a distance of 2 m a 12 diopter prism would displace an object: ANSWER>>24 cm
A spherical lens refracts light: ANSWER>>Equally in every direction
A 1.00 diopter spherical lens focuses light at: ANSWER>>1 m
The pointer at which a lens forms an image (whether real or virtual is the:
ANSWER>>Focal point
All of the following regarding the optical center of a lens is true except: ANSWER>>It
always coincides with the geometric center of the lens
The focal length of a lens: ANSWER>>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: Ans
- Is likewise virtual
Which of the following is the formula for finding focal length? ANSWER>>P = 1/F
What is the focal length of 5 diopter lens? ANSWER>>0.2 m
A lens has a focal length of 33 cm. What is its dioptric power? ANSWER>>3 diopters
question 30 ANSWER>>we good
All of the following regarding cylindrical lenses are true except: ANSWER>>They
are plus power lenses
MANUAL 2025 ACTUAL QUESTIONS WITH
100% CORRECT 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) ANSWER>>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 ANSWER>>Infrared and ultraviolet
Which color has the longest wavelength? ANSWER>>a) Red has the longest
wavelength: 650 nanometers.
Geometric optics includes: ANSWER>>The effects of media on the path of light
When light bounces back from an object, this is known as: ANSWER>>Reflection
In reflection, the light rays that hit the object or interface between media with different
indices of refraction are called: ANSWER>>Incident rays
In optics, a medium (or media, plural) is: ANSWER>>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: ANSWER>>Refraction
The ray of light that enters a transparent medium is termed: ANSWER>>Incident ray
If light passes through a lens and the rays are spread apart on exiting, this is known as:
ANSWER>>Divergence
If light passes through a lens and the rays are bent toward each other on exiting, this is
known as: ANSWER>>Convergence
A comparison of the speed of light in air to the speed of light through a substance is:
ANSWER>>IR (Snell's Law)
, The denser the substance, the more slowly light passes through it, and:
ANSWE
R>>The higher the IR
The IR of crown glass is: ANSWER>>1.50
Light travelling through a prism will be bent toward the prism's: ANSWER>>base
The image of an object viewed through a prism: ANSWER>>Is virtual and shifted
toward the apex
A 1.00 diopter prism bends light: ANSWER>>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: ANSWER>>0.5 m
This displacement of an object 4 cm at a distance of 1 m would require prism of: Ans -
5.0 diopters
At a distance of 2 m a 12 diopter prism would displace an object: ANSWER>>24 cm
A spherical lens refracts light: ANSWER>>Equally in every direction
A 1.00 diopter spherical lens focuses light at: ANSWER>>1 m
The pointer at which a lens forms an image (whether real or virtual is the:
ANSWER>>Focal point
All of the following regarding the optical center of a lens is true except: ANSWER>>It
always coincides with the geometric center of the lens
The focal length of a lens: ANSWER>>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: Ans
- Is likewise virtual
Which of the following is the formula for finding focal length? ANSWER>>P = 1/F
What is the focal length of 5 diopter lens? ANSWER>>0.2 m
A lens has a focal length of 33 cm. What is its dioptric power? ANSWER>>3 diopters
question 30 ANSWER>>we good
All of the following regarding cylindrical lenses are true except: ANSWER>>They
are plus power lenses
