Lakhmir Singh Solutions for Class 10 Physics

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Lakhmir Singh

Lakhmir Singh and Manjit Kaur have written many books on the main three branches of science- Physics, chemistry and biology. Lakhmir Singh started his career as a lecturer in Dyal Singh College of the University of Delhi after completing his post-graduation in physics from Delhi university. Manjit Kaur has been a school teacher for years after completing her B. Ed from Delhi University.

Class 10th is very crucial for all the students as it is the stepping stone of your future. Lakhmir Singh Physics Class 10 solutions comprise six chapters. After each chapter, there are questions for the students to check their understanding of concepts. It is categorised into:

  • Very short answer type questions
  • Short answer type questions
  • Long answer type questions
  • Multiple-choice questions
  • Questions based on higher-order thinking skills
Lakhmir Singh Chapters for Class 10 Physics
Chapter 1 Electricity
Chapter 2 Magnetic Effects of Electric Current
Chapter 3 Sources of Energy
Chapter 4 Reflection of Light
Chapter 5 Refraction of Light
Chapter 6 The Human Eyes and the Colourful World

Lakhmir Singh Class 10 Physics Solution

Chapter 1 – Electricity

Chapter 1 starts with introducing two charges, positive and negative charges. This chapter deals mainly with the types of electricity, its unit and other fundamental things about electricity. We know that electricity has been a part of everyone’s life in this modern era. We cannot imagine a world without electric currents. After the completion of each concept, specific questions are given for the students to test their understanding.

Chapter 2 – Magnetic Effects of Electric Current

The chapter named Magnetic Effects of Electric Current explains how electric current can be used to produce the magnetic field. Experiments are illustrated for showing the magnetic effect of current. The chapter is concluded by detailing the concepts like domestic electric circuits, Earthing of electrical appliances, electric fuse, electricity risks, and cautions while using electricity.

Chapter 3 – Sources of Energy

This chapter explains how energy is obtained and its types and generating electricity using different forms of energy. Energy can be classified into two main categories:

  • Renewable energy
  • Non-renewable energy

This chapter includes various types of power plants and how electricity is produced in detail. All about the uses and benefits of natural sources are discussed in this chapter.

Chapter 4 – Reflection of Light

Light is a form of energy. The bouncing back phenomenon of light rays upon striking an object is called the reflection of light. The chapter is all about light and its nature and also deals with objects and their images. In this chapter, students will learn different parameters of light and differentiate types of mirrors, i.e. plane mirror, concave mirror, and convex mirror.

Chapter 5 – Refraction of Light

The phenomenon called refraction of light is focussed on in this chapter. The definition is as follows, the bending of light on passing from one medium to another. Few cases are listed where the refraction of light causes.

  • When the light goes from a relatively rarer medium to a denser medium
  • When the light goes from relatively denser to rarer medium
  • The case of light going from air into the glass and again into the air
  • The point of light usually falling on a glass slab

Refraction of light by spherical lenses and various lenses like optical centre, principal axis, principal focus, focal length, etc., are discussed in this chapter.

Chapter 6 – The Human Eyes and the Colourful World

Our eyes are responsible for vision. Have you ever thought of being blind for a few minutes? It is only light that makes things visible. The main parts of the human eyes are explained in detail—cornea, iris, pupil, ciliary muscles, eye lens, retina, and optic nerve. The chapter also discusses how we have two eyes for vision and not just one? Defects of vision such as:

  • Myopia
  • Hypermetropia
  • Presbyopia
  • Cataract

Benefits of Lakhmir Singh and Manjit Kaur Solutions

The solutions made by Lakhmir Singh and Manjit Kaur are easy to understand for all the students who are weak in a subject. The book is written lucidly and straightforwardly. So that students don’t feel difficult to read and understand the concept. Many diagrams and practical experiments are illustrated after each concept. Each of the students will carry study material for reference. Lakhmir Singh solutions are one of the recommended books by experts because of the concept presentation and self-assessment activities provided.

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