Class 11 Psychology Chapter 1 - What is Psychology NCERT Solutions for Class 11 Psychology. Chapter 1 What is Psychology. PDF Download Free. Download Chapter 1 PDF Chapter 1: What is Psychology Chapter 2: Methods of Enquiry in Psychology Chapter 3: The Bases of Human Behaviour Chapter 4: Human Development Chapter 5: Sensory Attentional and Perceptual Processes Chapter 6: Learning Chapter 7: Human Memory Chapter 8: Thinking Chapter 9: Motivation and Emotion