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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. 16.1).
Direct the light reflected by the mirror on to a sheet of paper held close to the mirror. Move the sheet of paper back and forth gradually until you find on the paper sheet a bright, sharp spot of light. Hold the mirror and the paper in the same position for a few minutes.
Apr 16, 2024 · Class 8 Science Chapter 16 : Light is an essential and captivating aspect of our lives, providing illumination, allowing us to see the world around us, and playing a crucial role in various natural and technological processes. Chapter 16 of the Class 8 Science NCERT textbook delves into the mesmerizing realm of light, shedding light on its properties, behavior, and applications.
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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)...
So if you are in 8th standard, and studying Science textbook (named Science), then you can read Ch 13 here and afterwards use NCERT Solutions to solve questions answers of Light. NCERT Book Class 8 Science Chapter 13 Light. The complete Chapter 13, which is Light, from NCERT Books for Class 8 Science is as follows.
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Nov 6, 2023 · Here we have curated the list of chapter-wise NCERT Solutions for Class 8 Science PDF as per the latest and updated 2021-22 CBSE Syllabus and Exam Pattern. Kids who find learning the physics and biology concepts difficult at class 8 can go through this NCERT 8th Class Science Textbook Solutions PDF. Also, it provides extra guidance to students ...
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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 ...
