Science class 10th chapter-Light Reflection and Refraction Formula & Important points
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Science class 10th chapter-Light Reflection and Refraction Formula & Important points
Jun 13, 2022, 16:45 IST
Laws of Reflection
- Angle of incidence is equal to the angle of reflection. (∠i = ∠r).
- The incident ray, the reflected ray and the normal at the point o incidence, all lie in the same plane.
IMAGE FORMATION BY A CONCAVE MIRROR FOR DIFFERENCT POSITION OF THE OBJECT
| Position of the object | Position of the image | Size of the image | Nature of the image |
| At infinity | At the focus F | Highly diminished, point sized | Real and inverted |
| Beyond the centre of curvature C | Between F and C | Diminished | Real and inverted |
| At C | At C | Same size | Real and inverted |
| Between C and F | Beyond C | Enlarged | Real and inverted |
| At F | At infinity | Infinitely large or highly enlarged | Real and inverted |
| Between the pole P of the mirror and focus F | Behind the mirror | Enlarged | Virtual and erect |
IMAGE FORMATION BY A CONVEX MIRROR
| Position of the object | Position of the image | Size of the image | Nature of the image |
| At infinity | At the focus F, behind the mirror | Highly diminished point-sized | Virtual and erect |
| Between infinity and the pole P of the mirror | Between P and F, behind the mirror | Diminished | Virtual and erect |
The corresponding ray diagrams are included in annexure 4
Mirror Formula:
Magnification:
The ratio of the size of the image to that of the object is called magnification. For a mirror, magnification (m) is given by.
m = -v/u
Lens formula:
Laws of reflection
- Angle of incidence is equal to the angle of reflection. (i = r).
- The incident ray, the reflected ray and the normal at the point of incidence, all lie in the same plane.
- Magnification: m= v/u
Frequently Asked Questions (FAQs)
Q1. Is the Physics Wallah NCERT Solutions for Class 10 Science Chapter - Light Reflection available in PDF format?
Ans. Yes, Physics Wallah provides the NCERT Solutions for Class 10 Science Chapter - Light Reflection and Refraction in PDF format, which the students can download. These reference materials from Physics Wallah are hassle-free and help students score well in the Class 10 CBSE Term I exams. The PDFs created by the experts are of high quality.
Q2. What are the uses of referring to Physics Wallah NCERT Solutions for Class 10 Science Chapter - Light Reflection and Refraction?
Ans. The uses of referring to Physics Wallah NCERT Solutions for Class 10 Science Chapter 10 are –
- Each answer has a comprehensive explanation to help students understand the concepts.
- The solutions are strictly based on the syllabus designed by the CBSE board.
- The chapter-wise solutions are accurate and genuine to improve the problem-solving skills among students.
- PDFs of solutions are available for free, which can be downloaded and referred by the students.
Q3. What topics are covered in the NCERT Solutions for Class 10 Science Light Reflection and Refraction, and how many questions are present under each?
Ans. The topics covered in the NCERT Solutions for Class 10 Science Light Reflection and Refraction are –
- Reflection of Light
- Spherical Mirrors
- Image Formation by Spherical Mirrors
- Representation of Images Formed by Spherical Mirrors Using Ray Diagram – 4 Questions (2 short, two long)
- Mirror Formula and Magnification – 2 Questions (2 Numerical)
- Refraction of Light – 5 Questions (1 numerical, 2 Long answers, and 1 Short answer)
- Power of Lens – 3 Questions (2 Short answers and 1 numerical)
For additional information related to the subject you can check the Science Formula section.
To Download Free Pdf sheet of Light Reflection and Refraction it consist of Short notes and key points of Physics formula for class 10
