Summary Chapter 12, titled “Atoms,” in Class 12 Physics focuses on understanding the structure of atoms, one of the fundamental concepts in physics. The chapter delves into the historical background of atomic models, beginning with J.J. Thomson’s plum pudding model and progressing to more refined models like Rutherford’s nuclear model and Bohr’s model of the […]
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Chapter 11, “Dual Nature of Radiation and Matter,” explores the wave-particle duality of radiation and matter, which is a fundamental concept in quantum mechanics. The chapter begins by discussing the photoelectric effect, where light behaves as a particle (photon) to eject electrons from a metal surface. This phenomenon could not be explained by classical wave […]
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Chapter 10 of Class 12 Physics is titled “Wave Optics.” This chapter deals with the wave theory of light and its various phenomena such as interference, diffraction, and polarization. It begins by explaining Huygens’ principle, which forms the foundation of wave optics, describing how every point on a wavefront can be considered a source of […]
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Chapter 9 of Class 12 Physics, titled “Ray Optics and Optical Instruments,” delves into the fundamental principles of light propagation, reflection, and refraction through various media. The chapter starts with the concept of light as a ray and builds upon the laws of reflection and refraction, explaining how light interacts with different surfaces and mediums. […]
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Class 12th physics chapter 8 book 📚 download Questions and answers ❓ 1. What are electromagnetic waves? Answer: Electromagnetic waves are waves that are formed by the oscillation of electric and magnetic fields, which are perpendicular to each other and to the direction of wave propagation. These waves do not require a medium to travel […]
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Download Chapter 7 Book 📚 Question & answer ❓ 1. What is meant by alternating current (AC)? Answer: Alternating current (AC) is an electric current that reverses its direction periodically, unlike direct current (DC), which flows in one direction. The voltage in AC circuits also alternates in polarity periodically. 2. What is the difference between […]
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Download books 📚 chapter 6 Electromagnetic Induction Important Questions and Answers What is electromagnetic induction? Answer: Electromagnetic induction is the phenomenon where an electromotive force (EMF) is induced in a conductor when it is exposed to a changing magnetic field. Who discovered electromagnetic induction? Answer: Electromagnetic induction was discovered by Michael Faraday in 1831. What […]
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Class 12 physics chapter 5 book 📚 download Questions and answers ❓ Question: What is Newton’s First Law of Motion? Answer: Newton’s First Law of Motion states that an object will remain at rest or continue to move in a straight line at constant velocity unless acted upon by an external force. Question: How does […]
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Download books 📚 chapter 4 moving charge and magnetism Question answer answer ❓ What is the basic principle of an electric motor? Answer: An electric motor works on the principle that a current-carrying conductor placed in a magnetic field experiences a force. This force is utilized to create rotational motion. How does a charged particle […]
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Download books chapter 3 Physics NCERT Questions and answers ❓❓ What is electric current, and how is it defined? Answer: Electric current is the flow of electric charge through a conductor. It is defined as the rate of flow of charge through a cross-sectional area. Explain Ohm’s Law in terms of potential difference and current. […]