NCERT Grade 12 Physics Chapter 10, Wave Optics. This is a part of Unit 6, Optics. One of the most important Units of NCERT Grade 12 Physics; Optics holds a total weightage of 14 marks in the final examination. In this chapter students will first learn the original formulation of the Huygens principle and derive the laws of reflection and refraction. In further sections of the chapter they will learn about the phenomenon of interference which is based on the principle of superposition, the phenomenon of diffraction which is based on HuygensFresnel principle. Eventually, towards the conclusion of the chapter; the phenomenon of polarisation which is based on the fact that the light waves are transverse electromagnetic waves shall be learnt.
Introduction to Wave Optics, Huygens Principle, Refraction and Reflection of Plane Waves Using Huygens Principle, Refraction of a plane wave, Refraction at a rarer medium, Reflection of a plane wave by a plane surface, The doppler effect, Coherent and Incoherent Addition of Waves, Interference of Light Waves and Young’s Experiment, Diffraction, The single slit, Seeing the single slit diffraction pattern, Resolving power of optical instruments, The validity of ray optics, Introduction to Polarisation, Polarisation by scattering and Polarisation by reflection are the topics learnt in this chapter.
Ray diagrams, graphs, illustrations and examples associated to daily life make this chapter very interesting and easy to learn. Solved numeral problems and unsolved ones for practice make the students understand the concept better and develop a strong grip on the subject. The contribution of eminent scientists such as Huygen, Thomas Young and others in the field of Wave Optics has helped to develop laws on the topic that the students shall study through this chapter. Detailed derivations to help derive formulas and equations will aid to solve the problems and understand the concepts.
Get 100 percent accurate NCERT Solutions for Class 12 Physics Chapter 10 (Wave Optics) solved by expert Physics teachers. We provide solutions for questions given in Class 12 Physics text-book as per CBSE Board guidelines from the latest NCERT book for Class 12 Physics. The topics and sub-topics in Chapter 10 Wave Optics are given below.
Ex 10.1 - INTRODUCTION
Ex 10.2 - HUYGENS PRINCIPLE
Ex 10.3 - REFRACTION AND REFLECTION OF PLANE WAVES USING HUYGENS PRINCIPLE
Ex 10.3.1 - Refraction of a plane wave
Ex 10.3.2 - Refraction at a rarer medium
Ex 10.3.3 - Reflection of a plane wave by a plane surface
Ex 10.3.4 - The doppler effect
Ex 10.4 - COHERENT AND INCOHERENT ADDITION OF WAVES
Ex 10.5 - INTERFERENCE OF LIGHT WAVES AND YOUNG’S EXPERIMENT
Ex 10.6 - DIFFRACTION
Ex 10.6.1 - The single slit
Ex 10.6.2 - Seeing the single slit diffraction pattern
Ex 10.6.3 - Resolving power of optical instruments
Ex 10.6.4 - The validity of ray optics
Ex 10.7 - POLARISATION
Ex 10.7.1 - Polarisation by scattering
Ex 10.7.2 - Polarisation by reflection.
We cover all exercises in the chapter given below:-
Chapter 10 Exercises - 21 Questions with Solutions.
Other than given exercises, you should also practice all the solved examples given in the book to clear your concepts on Wave Optics. Download the free PDF of Chapter 10 Wave Optics and take the print out to keep it handy for your exam preparation.