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The important topics covered in Chapter 15 of NCERT Solutions for Class 7 Science are 1. Light Travels along a Straight Line 2. Reflection of Light 3. Right or Left! 4. Playing with Spherical Mirrors 5. Images Formed by Lenses 6. Sunlight — White or Coloured?
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- 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.
Light of Class 7. Are everything visible to us ? Are everything visible to every living things? Are all the living things can see in same pattern?To understand this we have to start with what is visible to us. humans can see is known as visible light. Not all animals can see all types of lights.
- What do you mean by the term reflection of light ? Answer: Reflection of light— When light strikes a polished surface it comes back in the same medium, is called reflection of light.
- How is a plane mirror made ? Answer: To make a plane mirror, a thin piece of glass is taken. One surface of the mirror is made opaque by silvering it.
- Explain the following terms: Incident ray, Reflected ray, Angle of incidence, Angle of reflection, Normal. Answer: Incident ray— The ray of light falling on the surface AB is called the incident ray.
- Draw a diagram showing the reflection of a light ray from a plane mirror. Label on it the incident ray, the reflected ray, the normal, the angle of incidence i and the angle of reflection r.
Nov 30, 2023 · Properties of Light- Understanding that light travels in a straight line and exploring the concept of beams of light. Reflection of Light- Learning about the laws of reflection, the role of polished or shiny surfaces as mirrors, and how mirrors change the direction of light.
Vedantu’s NCERT Solutions for Class 7 Science Chapter 11 - Light offers a vital tool for students to understand light's principles. Focus on understanding the behaviour of light, reflection, and refraction.
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Jun 18, 2021 · Light NCERT Solutions for Class 7 Science Chapter 15. Class 7 Science Chapter 15 Light Textbook Exercise Questions and Answers. Question 1. 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. c.
