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Explain the law of reflection in Chapter 16 of NCERT Solutions for Class 8 Science. The principle, when the light rays fall on a smooth surface, the angle of reflection is equal to the angle of incidence; also, the incident ray, the reflected ray, and the normal to the surface all lie in the same plane. The law of reflection defines that upon ...
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- Ncert Solutions For Class 8 Science Chapter 16 Mcqs
Question 1. Suppose you are in a dark room. Can you see objects in the room? Can you see objects out¬side the room? Explain. Answer: When we are in a dark room then we cannot see objects in the room. We can see the objects outside the room, because out of the room the light is available and the rays of light can enter our eyes after reflection from...
Activity 1 (NCERT Textbook, Page 199) Fix a white sheet of paper on a drawing board or a table. Take a comb and close all its openings except one in the middle. You can use a strip of black paper for this purpose. Hold the comb perpendicular to the sheet of paper. Throw light from a torch through the opening of the comb from one side (Fig. 16.5). W...
Question 1. Define dispersion of light. [MSE (Chandigarh) 2007] Answer: Splitting up of white light into seven colours when it passes through a glass prism is known as dispersion of light. Question 2. Name the colours in the order they appear in the spectrum of light. [MSE (Chandigarh) 2005] Answer: VIBGYOR – Violet, Indigo, Blue, Green, Yellow, Or...
Question 1. Which kind of spherical mirrors are used in vehicles ? Why ? [NCT 2007] Answer: A convex mirror is used in vehicles because it gives the driver a large field of view. Question 2. Why is it important to take care of our eyes ? Mention any two activities that may cause damage to our eyes. [KVS 2005] Answer: Eyes are the most wonderful gif...
Question 1. Two mirrors meet at right angles. A ray of light is incident on one at an angle of 30° as shown in the figure. Draw the reflected ray from the second mirror. [NCERT] Answer: Question 2. What are cones and rods ? What are their functions ? Answer: Cones are the nerve endings which are sensitive to colour light. They help us to distinguis...
Question 1. How can you compare human eye with a photographic camera ? [MSE (Chandigarh) 2008] Answer: Question 2. Draw a labelled sketch of human eye. [NCT2011] Answer: Question 3. Differentiate between regular and diffused reflection. Does diffused reflection mean the failure of the laws of reflection ? [NCERT] Answer: When the reflected rays are...
Question 1. Which of the following material cannot be used to make a lens ? [NCERT] (a) Plastics (b) Water (c) Clay (d) Glass Answer: (c) Question 2. Which of the following would you prefer, to read very small letters printed on the pages of a dictionary ? [NCERT] (a) A convex lens of focal length 100 cm (b) A concave lens of focal length 10 cm (c)...
Feb 19, 2019 · The lesson covers the complete explanation of class 8 Chapter 16 Light. Topics covered are luminous and non – luminous objects, reflection, laws of reflection and characteristics of a reflector Topics namely sources of light, plane mirror, spherical mirror, concave mirror, convex mirror, real image, virtual image, human eye, kaleidoscope, deflection and dispersion have also been covered.
- 48 min
Jun 8, 2023 · Answer 3: (a) A polished wooden table is an example of smooth surface. So, when a beam of light reflects from it, a regular reflection will take place. (b) Chalk powder has irregular surface. So, when a beam of light reflects from it, a diffused reflection will take place. (c) A cardboard has irregular surface.
Jun 12, 2021 · Chapter 16 Light Class 8 Science NCERT Solutions will prepare yourself well before examinations and help in improving the student's experience. These are helpful in building a great foundation of concepts and make easy for the students to understand basics. It can be used to enrich knowledge and make lessons for learners more exciting.
Class 8 Light Question Answers offer detailed explanations for each concept, simplifying complex ideas related to the behaviour and properties of light and making them accessible to students. Class 8 Science Light solutions include clear diagrams and illustrations, helping students visualise phenomena like the formation of shadows, images by plane mirrors, and the functioning of optical ...
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Mar 13, 2024 · Well-written notes help us cover the chapter in its entirety and serve as a quick revision tool that becomes essential when preparing for our exams. Keeping the same in mind, we have prepared NCERT Solutions and Notes for Class 8 Science Chapter 13: Light. In the notes, you will find a summary of all important concepts and theories in the lesson.
