Physics

Chapter 1 – Physical World – SCIENCE AND ITS ORIGIN – Class 11 – Physics – L2

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Chapter 1 Physical World SCIENCE AND ITS ORIGIN Some physicists from different countries of the world and their major contributions Name Major contribution/discovery Country of Origin Archimedes Principle of buoyancy; Principle of the lever Greece Galileo Galilei Law of inertia Italy Christiaan Huygens Wave theory of light Holland Isaac Newton Universal law of gravitation; Laws …

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Chapter 1 – Physical World – SCIENCE AND ITS ORIGIN – Class 11 – Physics – L1

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Chapter 1Physical WorldSCIENCE AND ITS ORIGIN Science is a systematic understanding of natural phenomena in detail so that it can be predicted, controlled and modified. Science involves exploring, experimenting and speculating phenomena happening around us.The word Science originates from the Latin verb Scientia meaning ‘to know’. The Sanskrit word Vijnan and the Arabic word ilm …

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Test – Important Questions – Chapter 4 – Moving Charges & Magnetism – Class 12 Physics

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1.Write the underlying principle of a moving coil galvanometer. (Delhi 2015) 2. An electron is moving along +ve x-axis in the presence of uniform magnetic field along +ve y-axis. What is the direction of force acting on it? 3. How is the magnetic field inside a given solenoid made strong? (All India 2011)4. Using Ampere’s …

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Test – Important Numericals – Chapter 4 – Moving Charges & Magnetism – Class 12 Physics

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Test – Chapter 4 – Moving Charges & Magnetism – Numericals. 1. A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. What is the magnitude of the magnetic field B at the centre of the coil? 2. An electron of kinetic energy 25KeV moves …

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