NCERT Solutions for Class 8 Science Chapter 16- Light

Our NCERT Solutions for Class 8 Science Chapter 16-Light are formulated as per the latest update given by CBSE. Some of the important topics which are covered in this unit are what makes things visible, the meaning of reflection, laws of reflection, regular and diffused reflection, how reflected light can be reflected again, dispersion of light, multiple images, the human eye, caring for the eyes and Braille System. These NCERT Solutions for Chapter 16 will help you develop a very strong conceptual foundation for learning tougher concepts in higher classes. 

They are easy to comprehend, fully accurate, comprehensive yet precise. There are a total of 17 questions at the end of the CBSE NCERT Class 8 Science Chapter 16. Instasolv’s NCERT Solutions have been drafted by our proficient subject matter experts. 

With adequate explanations, relevant examples, and illustrative diagrams, our solutions for Chapter 16 ensures that you become thorough with all concepts of the chapter and that all your doubts are cleared. Our smart, systematic and seamless NCERT Solutions for Class 8 Science Chapter 16-Light are perfect for fast and effective learning and quick and efficient revisions. They give you an all-encompassing exposure to various important questions and question types from the chapter.

NCERT Class 8 Science Chapter 16: Important Topics

Our NCERT Solutions for Class 8th Science Chapter 16 – Light, discuss the physiology of our eyes, multiple reflections, laws of reflection, and the properties of light. Here you will also learn how our eyes sense the light and how our eyes are important to gauge the surroundings we are living in. This chapter also teaches you how we use our sense of vision to differentiate among the objects. You shall be learning the fundamental concepts in this chapter through examples of birds, stars and moon. 

Some important topics covered in this chapter have been listed below. 

  • What makes things visible

This first section of NCERT Class 8 Science Chapter 16 teaches you how the reflection of the images are seen when there is a ray of light which falls on the object. Here you will learn more about how the sense of vision is helping the human eyes to see the objects. You will also understand how the reflection of light is in one particular direction.  

  • Laws of Reflection

In this section, you will learn about an experiment that helps you understand how light rays travel in a straight path and how it is reflected following a rectilinear path. You will be performing this experiment with simple tools. In this section, you shall be learning about mirror reflection, specular reflection, and diffuse reflection. 

Apart from learning about the meaning of reflection you will also be learning the laws of reflection and get familiar with terms such as ray, reflected ray, angle of incidence, the normal, incident ray,

  • Regular and Diffused Reflection

In this part of Class 8 Science Light, you will be reading about regular and diffused reflection. You will learn the main difference between the two terms and how the reflection is occurring in both cases. Both these terms have been explicitly elaborated with the help of relevant examples. 

  • Reflected light can be reflected again

This section of CBSE Class 8 Science Syllabus, you will learn how the light gets reflected twice after falling on a smooth or rough surface. You shall see how the plane surface reflects multiple images when reflected light is falling over it again and again. Relevant examples are mentioned here for you to understand clearly about the topic. 

  • Multiple images

This section of NCERT CBSE Class 8 Science Chapter 16, will give you details on multiple image formation and how they are formed due to the incidence of reflected rays. You will learn the concept through certain appropriate examples. This will help you understand the concept of multiple images well. 

  • Dispersion of Light

In this CBSE NCERT Class 8 Science Chapter 16, you will learn about the concept of dispersion of light. You will learn that when light splits into its component colours, it is termed as dispersion. For example, the rainbow. 

  • Human Eye

In this section, you will be learning all aspects of a human eye. You will also learn the different functions of different organs in the human eye. The different organs of the eye include the cornea, pupil, iris, retina, lens, cones and optic nerve. This section also teaches you how to care for your eyes, how visually impaired persons can read and write, what is Braille System and how it can help the visually impaired.  

NCERT CBSE Class 8 Science Chapter 16: Exercise-Discussion

This Chapter of CBSE NCERT Class, 8 Science book, consists of one exercise with 17 questions. 

  • Question 1 is a short answer question, in which you have to write about whether or not objects can be seen in a dark room. 
  • Question 2 is a differentiation question and covers the topics laws of reflection, regular reflection and diffused reflection. 
  • In NCERT Solutions for Class 8 Science Chapter 16-Light exercise question, 3 is a long answer question covering the topics of regular reflection and diffused reflection. 
  • Question 4 covers the topic laws of reflection, and it is a direct question. 
  • Question 5 is an application-based question that deals with the laws of reflection. 
  • Question 6 is fill in the blank question that covers quite a few topics of the chapter. 
  • Question 7 and 8 are multiple-choice questions, in which four options will be given, and you will have to select one correct option. 
  • Question 9 asks you to describe the construction of a Kaleidoscope. 
  • Question 10 is a diagrammatic question, in which you have to draw a human eye and label the parts appropriately. 
  • Question 11 is an application-based question. To answer this question, you need to be thorough with the concepts of this chapter. 
  • Question 12 is a short answer question. Here, you have to explain how you should take care of your eyes. 
  • Question 13 is a simple numerical from the topic laws of reflection. 
  • Question 14 to question 17 is related to plane mirrors. All of these questions are conceptual.