Class 10 Physics Chapter 3 Notes
Complete Notes on Chapter No.12: class 10 physics chapter 3 notes written by Mr. Tayyab Shahzad. These computerized notes are very helpful in the preparation of class 10 physics chapter 3 notes for students of the 10th class Physics and these are according to the paper patterns of all Punjab boards.
Summary and Contents:
Topics which are discussed in the notes are given below:
- Important class 10 physics chapter 3 notes pdf for all students of Punjab Textbook Board.
- Geometrical Optics Exercise Multiple Choice Questions ( MCQs ) with correct Answers
- Geometrical Optics Exercise Short Questions with Answers.
- Important physics chapter 3 class 10 notes for all students of Punjab Textbook Board.
- What do you understand by the Reflection of light?
- Describe the following terms used in Reflection:
(i) Normal (ii) Angle of Incidence (iii) Angle of Reflection
- Important physics class 10 chapter 3 notes for all students of Punjab Textbook Board.
- State Laws of Reflection?
- Define Refraction of Light.
- Define the following terms used in refraction:
(i) Angle of incidence (ii) Angle of refraction
- Important 10th class physics chapter 3 notes for all students of Punjab Textbook Board.
- What is meant by the Refractive index of a material?
- State the Laws of Refraction of Light?
- What is meant by the term Total Internal reflection?
- Important chapter 3 physics class 10 notes for all students of Punjab Textbook Board.
- State the conditions for Total Internal reflection.
- What are Optical Fibres?
- Define the following terms applied to a lens:
(i) Principal axis (ii) Optical centre (iii) Focal length
- Important class 10 physics notes chapter 3 for all students of Punjab Textbook Board.
- What is meant by the Principal focus of a:
(a) Convex lens (b) Concave lens
- Describe how light is Refracted through a Convex lens.
- A coin is placed at a focal point of a converging lens. Is an image formed?
What is its nature?
- Important class 10th chapter 3 physics notes for all students of Punjab Textbook Board.
- What are the Differences between Real and Virtual Images?
- How does a converging lens form a virtual image of a Real object? How does a
diverging lens can form a real image of a Real object?
- Important physics notes class 10 chapter 3 for all students of Punjab Textbook Board.
- Define the Power of a lens and its Units.
- What are the Differences between Resolving Power and Magnifying Power?
- Important physics class 10 notes chapter 3 for all students of Punjab Textbook Board.
- What is meant by the terms Nearsightedness and Farsightedness? How can
these defects be corrected?
- Define Lens.
- Why the position of the fish inside the water seem to be at less depth than that of its actual position?
- Important physics class 10th chapter 3 notes for all students of Punjab Textbook Board.
- Define Endoscopy.
- Why or why not concave mirrors are suitable for makeup?
- Difference between a telescope and a microscope?
- Important 10th class physics chapter 12 mcqs for all students of Punjab Textbook Board.
- Define Light Pipe.
- What is meant by principal focus or focal point?
- Under what conditions will a converging lens form a virtual image?
- Important 10th class physics chapter 12 numericals solved for all students of Punjab Textbook Board.
- Types of Reflection: Nature of reflection depends on smoothness of the surface. For example, a smooth surface of silver reflects rays of light in one direction only. The reflection by these smooth surfaces is called regular reflection.
- Important 10th class physics chapter 12 numerical for all students of Punjab Textbook Board.
- Most of the objects in everyday world are not smooth on the microscopic level. The rough surfaces of these objects reflect the rays of light in many directions. Such type of reflection is called irregular reflection.
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- SPHERICAL MIRRORS: A mirror whose polished, reflecting surface is a part of a hollow sphere of glass or plastic is called a spherical mirror. In a spherical mirror, one of the two curved surfaces is coated with a thin layer of silver followed by a coating of red lead oxide paint. Thus, one side of the spherical mirror is opaque and the other side is a highly polished reflecting surface. Depending upon the nature of reflecting surface, there are two types of spherical mirrors.
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- Concave Mirror: A spherical mirror whose inner curved surface is reflecting is called concave mirror. In concave mirror the size of the image depends on the position of the object. Both virtual and real images can be formed by a concave mirror.
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- Convex Mirror: A spherical mirror whose outer curved surface is reflecting is called convex mirror. In convex mirror the size of the image is always smaller than the object. Only virtual and erect image is formed by a convex mirror.
- Important 10th class physics chapter 12 short questions for all students of Punjab Textbook Board.
- Pole: It is the midpoint of the curved surface of spherical mirror. It is also called vertex.
- Centre of Curvature (C): A spherical mirror is a part of a sphere. The centre of this sphere is called centre of curvature.
- Important class 10th physics chapter 12 important questions for all students of Punjab Textbook Board.