NCERT Solutions for Class 11 Psychology Chapter 5

Sensory, Attentional, and Perceptual Processes Class 11

Chapter 5 Sensory, Attentional, and Perceptual Processes Exercise Solutions

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Review questions : Solutions of Questions on Page Number : 106

Q1 :  

Explain the functional limitations of sense organs.


Answer :

The functional limitations of sense organs of human beings refer to their limited range of stimulation. In order to be noticed, a stimulus has to be of an optimal intensity and magnitude. Thus, the stimulus has to carry a minimum value or weight. For example, our ears cannot hear very faint or loud sounds. Similarly, our eyes cannot see objects in very dim or very bright light.

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Q2 :  

What is meant by light and dark adaptation? How do they take place?


Answer :

Light adaptation is the process of adjusting to bright light after exposure to dim light. This process often takes a minute or two to be completed. Dark adaptation, on the other hand, refers to the process of adjusting to dim light after exposure to bright light. It may take half an hour or longer depending upon the level of exposure.

Light and dark adaptation takes place due to photochemical processes. Light adaptation takes place when the molecules of rhodopsin or visual purple in the rods of the eye get bleached or broken down, as a result of the action of light. Dark adaptation takes place when the light is removed allowing for restorative processes that regenerate the pigment in the rods with the help of vitamin A.

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Q3 :  

What is colourvision and what are the dimensions of colour?


Answer :

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Q4 :  

How does auditory sensation take place?


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Q5 :  

Define attention. Explain its properties.


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Q6 :  

State the determinants of selective attention. How does selective attention differ fromsustained attention?


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Q7 :  

What is the main proposition of Gestalt psychologists with respect to perception of the visual field?


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Q8 :  

How does perception of space take place?


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Q9 :  

What are the monocular cues of depth perception? Explain the role of binocular cues in the perception of depth?


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Q10 :  

Why do illusions occur?


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Q11 :  

How do socio-cultural factors influence our perceptions?


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Psychology : CBSE NCERT Exercise Solutions for Class 11th for Sensory, Attentional, and Perceptual Processes will be available online in PDF book form soon. The solutions are absolutely Free. Soon you will be able to download the solutions.

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