Welcome to ATP Education
ATP Education
16. Light Science class 8 in English Medium ncert book solutions Additional Questions With Solutions
16. Light Additional Questions With Solutions – Complete NCERT Book Solutions for Class 8 Science (English Medium). Get all chapter explanations, extra questions, solved examples and additional practice questions for 16. Light Additional Questions With Solutions to help you master concepts and score higher.
16. Light Science class 8 in English Medium ncert book solutions Additional Questions With Solutions
NCERT Solutions for Class 8 Science play an important role in helping students understand the concepts of the chapter 16. Light clearly. This chapter includes the topic Additional Questions With Solutions, which is essential from both academic and examination point of view. The solutions provided here are prepared strictly according to the latest NCERT syllabus and follow the guidelines of CBSE to ensure accuracy and relevance. Each question is explained in a simple and student-friendly manner so that learners can grasp the concepts without confusion. These NCERT Solutions are useful for regular study, homework help, and exam preparation. All textbook questions are solved step by step to improve problem-solving skills and conceptual clarity. Students of Class 8 studying Science can use these solutions to revise important topics, understand difficult questions, and practise effectively before examinations. The chapter 16. Light is explained in a structured way, making it easier for students to connect the theory with the topic Additional Questions With Solutions. By studying these updated NCERT Solutions for Class 8 Science, students can build a strong foundation, boost their confidence, and score better marks in school and board exams.
16. Light
Additional Questions With Solutions
Additional Questions And Answer:
Ques: What is incident ray?
Ans: The light ray, which strikes any surface, is called the incident ray.
Ques: What is reflected ray?
Ans: The ray that comes back from the surface after reflection is known as the reflected ray.
Ques: Write the law of reflection.
Ans:
(i) Angle of incidence is always equal to the angle of reflection.
(ii) The incidence ray, the normal at the point of incidence and the reflected ray all lie in the same plane.
Ques: What is diffused or irregular reflection?
Ans: When all parallel rays reflected from a plane surface are not parallel, the reflection is known as diffused or irregular reflection.
Ques: What is regular reflection?
Ans: Reflection from a smooth surface like that of a mirror is called regular reflection.
Ques: What is called the phenomenon, in an image formed by a mirror the left of the object appears on the right and the right appears on the left?
Ans: This phenomenon is called lateral inversion.
Ques: Write the use of Periscopes.
Ans: Periscopes are used in submarines, tanks and also by soldiers in bunkers to see things outside.
Ques: What is Kaleidoscope? Write its one use.
Ans: Kaleidoscope is an idea or a device that is made to combine the mirrors at an angle to one another to get number of images. It is used to make numerous beautiful patterns.
Ques: Write the nature of image of plane mirror.
Ans: The nature of image of plane mirror is real, behind the mirror and equal to object.
Ques: What is the angle of incidence of a ray if the reflected ray is at an angle of 90° to the incident ray?
Ans: 45o
.Sol : AOB = 90o
While
∠AOB = 90o
⇒ ∠i + ∠r = 90o
⇒∠i + ∠i = 90o (∠i = ∠r)
⇒2∠i = 90o
⇒∠i = 90o/2
⇒∠i = 45o
Ques: what is the colour of sun light?
Ans: White
Ques: What is dispersion of light?
Ans: Splitting of light into its colours is known as dispersion of light.
Ques: How does white sunlight look while passing through prism?
Ans: It looks like seven colour of rainbow.
Ques: Name a natural phenomenon to show the splitting of light.
Ans: Formation of rainbow.
Ques:What is retina? Write its function?
Ans: The lens focuses light on the back of the eye, on a layer called retina.
Function of retina;
(i) Images are formed on retina.
See other sub-topics of this chapter:
1. Chapter Review 2. Text Book Exercise 3. Text Book Exercise 4. Additional Questions With Solutions 5. Additional Questions With Solutions