Question 1

Which property of a light wave determines the perceived hue of a color?

Accepted Answer

Wavelength

Question 2

The visible light spectrum ranges from approximately 380 nm to 700 nm. What does this range represent?

Accepted Answer

The wavelengths of light visible to the human eye

Question 3

Which structure in the eye is responsible for bending light as it enters?

Accepted Answer

Cornea

Question 4

As people age, they often require reading glasses due to a loss of accommodation. Which structure is most affected?

Accepted Answer

Lens

Question 5

What is the correct order of structures that light passes through as it enters the eye?

Accepted Answer

Cornea → Lens → Retina

Question 6

Which type of photosensitive cell is most responsible for color vision and high visual acuity?

Accepted Answer

Cones

Question 7

Why do humans have a blind spot in their vision?

Accepted Answer

It is where the optic nerve leaves the eye, and there are no rods or cones.

Question 8

Which property of a light wave is associated with perceived brightness?

Accepted Answer

Amplitude

Question 9

A person is walking through a forest at night and relies on their peripheral vision. Which type of cell is most active?

Accepted Answer

Rods

Question 10

According to the trichromatic theory, how many types of cones are there in the human retina?

Accepted Answer

Three

Question 11

Which theory explains the phenomenon of afterimages, where the opposite color appears after staring at a color for a long time?

Accepted Answer

Opponent Process Theory

Question 12

If a person has deuteranopia, which cone type is non-functional?

Accepted Answer

Green

Question 13

Which property of a light wave is associated with perceived saturation?

Accepted Answer

Complexity (number of wavelengths)

Question 14

The fovea is important for which aspect of vision?

Accepted Answer

High visual acuity

Question 15

Which stage of color vision is explained by the opponent process theory?

Accepted Answer

Later stage in the nervous system

Question 16

A person is deciding which color shirt to wear. Which type of cell is most involved?

Accepted Answer

Cones

Question 17

Which pair of colors is NOT an opponent pair according to the opponent process theory?

Accepted Answer

Green/Yellow

Question 18

If the amplitude of a light wave increases, what happens to the perceived brightness?

Accepted Answer

It increases

Question 19

Which equation best represents the relationship between wavelength and frequency for light waves?

Accepted Answer

$c = \lambda \cdot f$

Question 20

A person with colorblindness is unable to distinguish between red and green. Which theory best explains this phenomenon?

Accepted Answer

Trichromatic Theory

Sensation and Perception: Visual Stimuli and Color Vision

Study Guide - Practice Questions