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Fix a plane mirror strip vertically on the chart paper (Fig. 15.5). Now direct the beam of light on the mirror from the torch with slits. Place the torch in such a way that its light is seen along the chart paper on the board. Now adjust its position so that the light from the torch strikes the plane mirror at an angle (Fig. 15.5).
Jan 27, 2024 · White light can be sunlight. So, now we can say that sunlight consists of seven colours. We can mix these colours to get white light. This can be done by using Newton’s disc, let us try this. We hope the given CBSE Class 7 Science Notes Chapter 15 Light Pdf free download will help you. If you have any query regarding NCERT Class 7 Science ...
NCERT Solutions for Class 7 Science Chapter 15 Light are provided here. In this chapter, students will learn about light, the reflection of light and much more. To score good marks in Class 7 Science examinations, students should try to solve the questions provided at the end of each chapter with the help of NCERT Solutions for Class 7 Science.
- Fill in the blanks: (a) An image that cannot be obtained on a screen is called ___________ . (b) Image formed by a convex is __________ always virtual and smaller in size.
- Mark ‘T’ if the statement is true and ‘F’ if it is false: (a) We can obtain an enlarged and erect image by a convex mirror. (T/F) (b) A concave lens always form a virtual image.
- Match the items given in Column I with one or more items of Column II. Ans.
- State the characteristics of the image formed by a plane mirror. Ans. (i) Plane mirror forms an erect image. (ii) It forms a virtual image. (iii) Size of the image is same as that of the object.
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).
Nov 30, 2023 · Chapter 11- Light Syllabus Summary-. NCERT Solutions for Class 7 Science Chapter 11- Light – pdf. Chapter 11- Light – Textbook Exercise - (Solved) 1.Fill in the blanks. 2. Mark ‘T’ if the statement is true and ‘F’ if it is false. 3.Question- Match the items given in Column I with one or more items of Column II. 4.
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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.
